Sensory fibers spindle fibers. Medical search. Frequent questions

Intrafusal muscle fibers are skeletal muscle fibers that serve as specialized sensory organs (proprioceptors). (wikipedia.org)
Intrafusal muscle fibers are not to be confused with extrafusal muscle fibers, which contract, generating skeletal movement and are innervated by alpha motor neurons. (wikipedia.org)
There are two types of intrafusal muscle fibers: nuclear bag fibers and nuclear chain fibers. (wikipedia.org)
Intrafusal muscle fibers are walled off from the rest of the muscle by an outer connective tissue sheath consisting of flattened fibroblasts and collagen. (wikipedia.org)
Intrafusal muscle fibers detect the amount and rate of change in muscle length. (wikipedia.org)
Motor myoneural junctions on frog intrafusal muscle fibers. (xenbase.org)
This study, analysed in conjunction with our previously reported data, suggests that neurotrophin-3 acts in a coordinated fashion to support, either directly or indirectly, the development of each of the three classes of cells-Ia and Ib sensory neurons, fusimotor neurons, and intrafusal muscle fibers-that comprise the limb proprioceptive system. (omeka.net)

It is by the sensory information from gamma motor neurons and beta motor neurons that an individual is able to judge the position of their muscles. (wikipedia.org)
Using multi-electrode recordings in mice, we find that rate and rhythmicity of thalamic reticular nucleus (TRN) neurons are predictive of their functional organization in sleep and suggestive of their participation in sensory processing across states. (frontiersin.org)
Surprisingly, TRN neurons associated with spindles in sleep are also associated with alpha oscillations during attention. (frontiersin.org)
Spindles are generated by interactions between thalamic reticular nucleus (TRN) neurons and thalamo-cortical relay neurons. (frontiersin.org)
Sensory (afferent) neurons - Respond to touch, sound, light, and other stimuli and transmit nerve impulses from effector sites(muscles, organs) to the brain and spinal cord. (thehealthygamer.com)
So sensory neurons transmit from muscles and organs to the CNS. (thehealthygamer.com)
Nerves of PNS are how CNS receives sensory input(from sensory afferent neurons) and initiates responses(through motor efferent neurons). (thehealthygamer.com)
Some of these spindle afferents synapse on second-order neurons which conduct the stretch information up the spinal cord to the cerebellum and even the cerebral cortex. (humanneurobiology.com)
Other spindle afferents directly excite large alpha motor neurons innervating skeletal muscle fibers. (humanneurobiology.com)
If tone in a particular muscle decreases, allowing the muscle to lengthen, the spindles become stretched and trigger increased impulse firing in the spindle afferents, thereby increasing the firing rate of the alpha motor neurons to that same muscle and causing it to contract. (humanneurobiology.com)
The stretch sensitivity of the spindles can be adjusted by action of the small gamma motor neurons in the anterior horn (lamina IX) of the spinal cord. (humanneurobiology.com)
Administration of gene therapy viruses into skeletal muscle, where distal terminals of motor and sensory neurons reside, has been shown to result in extensive transduction of cells within the spinal cord, brainstem, and sensory ganglia. (frontiersin.org)
Muscles contain the synaptic connection between lower motor neurons and muscle fibers, i.e., the neuromuscular junction (NMJ), as well as specialized sensory nerve endings (e.g., muscle spindles). (frontiersin.org)
In vertebrates, limb velocity and movement (muscle length and the rate of change) are encoded by one group of sensory neurons (Type Ia sensory fiber) and another type encode static muscle length (Group II neurons). (sciencebeta.com)
2] These two types of sensory neurons compose muscle spindles. (sciencebeta.com)
To determine the load on a limb, vertebrates use sensory neurons in the Golgi tendon organs: type Ib afferents. (sciencebeta.com)
For example, consider the stretch reflex, in which stretch across a muscle is detected by a sensory receptor (e.g., muscle spindle, chordotonal neurons), which activates a motor neuron to induce muscle contraction and oppose the stretch. (sciencebeta.com)
During locomotion, sensory neurons can reverse their activity when stretched , to promote rather than oppose movement. (sciencebeta.com)
The proprioceptive sense is believed to be composed of information from sensory neurons located in the inner ear (motion and orientation) and in the stretch receptors located in the muscles and the joint-supporting ligaments (stance). (sciencebeta.com)
Gamma motor neurons (γ-MNs) selectively innervate muscle spindle intrafusal fibers and regulate their sensitivity to stretch. (biomedcentral.com)
Fusimotor axons originate either from gamma motor neurons (γ-MNs), which only innervate intrafusal fibers of the muscle spindle, or from alpha motor neurons (α-MNs), which innervate extrafusal muscle and also send a β-skeletofusimotor collateral axon to innervate the muscle spindle [ 2 - 4 ]. (biomedcentral.com)
The anterior (ventral) horns of the "H" contain lower motor neurons, which receive impulses from the motor cortex via the descending corticospinal tracts and, at the local level, from internuncial neurons and afferent fibers from muscle spindles. (msdmanuals.com)
The axons of the lower motor neurons are the efferent fibers of the spinal nerves. (msdmanuals.com)
The gray matter also contains many internuncial neurons that carry motor, sensory, or reflex impulses from dorsal to ventral nerve roots, from one side of the cord to the other, or from one level of the cord to another. (msdmanuals.com)
Using a genetic mouse model with deficient ketone oxidation in peripheral sensory neurons, we demonstrate that protection against methylglyoxal-induced nociception by a ketogenic diet partially depends on ketone oxidation by peripheral neurons. (bvsalud.org)
Knockout of Oxct1 in peripheral sensory neurons resulted in histological abnormalities and severe proprioceptive deficits in mice. (bvsalud.org)
We propose that, during salient sensory stimulation, L-ITCcs disinhibit local and distant principal neurons, acting as "hub cells," to orchestrate the activity of a distributed network. (jneurosci.org)
Sensory Ia axons wrap themselves around this spindle, and go on to form synapses with motor neurons and interneurons in the ventral horns of the spinal cord. (ualberta.ca)
If the sensory neurons are cut, this reflex does not occur. (ualberta.ca)
Intrafusal fibers receive input from gamma motor neurons in the spinal cord. (ualberta.ca)
Also in skeletal muscles are Golgi tendon organs , which send activity back to the spinal cord via Ib sensory neurons. (ualberta.ca)
These sensory neurons form connections with inhibitory interneurons in the spinal cord to control reverse myotatic reflexes . (ualberta.ca)
The effects of a deficiency of neurotrophin-3 on spinal motor neurons were assessed by determining the number of myelinated nerve fibers in lumbar ventral spinal roots of mice with a deletion in the neurotrophin-3 gene. (omeka.net)
Neurotrophin-3 might be generated by the intrafusal fibers and may provide a target-derived neurotrophic support for developing fusimotor neurons because in the absence of muscle spindles the neurons did not differentiate and/or survive. (omeka.net)
In contrast, a great majority of skeletomotor neurons that innervate extrafusal muscle fibers differentiated normally in the absence of neurotrophin-3. (omeka.net)
Sensory input via neuromuscular electrical stimulation (NMES) may contribute to synchronization between motor cortex and spinal motor neurons and motor performance improvement in healthy adults and stroke patients. (biomedcentral.com)
Notably, genetic deletion of Na V 1.1 in sensory neurons caused profound and visible motor coordination deficits in conditional knockout mice of both sexes, similar to conditional Piezo2-knockout animals, suggesting that this channel is a major contributor to sensory proprioceptive transmission. (elifesciences.org)
Thus, Na V 1.1 haploinsufficiency in sensory neurons impairs both proprioceptor function and motor behaviors. (elifesciences.org)
Using pharmacology, gene knockout, behavior, and histology in mice, the authors show quite convincingly that Na V 1.1 in sensory neurons is essential for normal motor behavior and contributes to proprioceptor excitability. (elifesciences.org)
This sensation happens just because something in the body feels different because it has been contacted by skillful touch or tools so we get feedback from the sensory neurons that are gong to the limbic system (in the brain) or to the central motor cortex depending on the kind of touch that is being applied. (maximumimpactptabq.com)
Here, we performed genetic fate mapping, showing that VGLUT3 lineage sensory neurons are divided into two groups, based on transient or persistent VGLUT3 expression. (jneurosci.org)

They constitute a distinct subpopulation that differs in morphology, physiology and connectivity from α-MNs, which innervate extrafusal muscle fibers and exert force. (biomedcentral.com)
The advantages of a γ-fusimotor system to control spindle sensitivity independently of force-generating extrafusal muscle fibers are not fully understood, nor are the mechanisms that generate the distinct γ- and α-MN subtypes in mammals. (biomedcentral.com)
Mixed intra- and extrafusal muscle fibers produced by temporary denervation in newborn rats. (xenbase.org)

Second they relay information from effector(organ, muscle) sites back to the brain via sensory receptors, providing constant update to the relation of the body and the environment. (thehealthygamer.com)
Sensory receptors are specialized structures that convert environmental stimuli(heat, sound, taste, etc) into sensory information for the brain. (thehealthygamer.com)
Muscle Spindles - Sensory receptors, run parallel to muscle fibers. (thehealthygamer.com)
Gogli Tendon Organs(GTOs) - Specialized sensory receptors located where the skeletal muscle fibers attach to the tendons. (thehealthygamer.com)
The rest are sensory in nature, although the largest sensory receptors, the neuromuscular spindles, have a motor supply of their own. (medscape.com)
Most vertebrates possess three basic types of proprioceptors: muscle spindles, which are embedded in skeletal muscle fibers, Golgi tendon organs, which lie at the interface of muscles and tendons, and joint receptors, which are low-threshold mechanoreceptors embedded in joint capsules. (sciencebeta.com)
There are specific nerve receptors for this form of perception termed "proprioreceptors", just as there are specific receptors for pressure, light, temperature, sound, and other sensory experiences. (sciencebeta.com)
Muscle spindles are the primary proprioceptive sensory receptors and are present in almost all skeletal muscles. (recherche-myologie.fr)
Acetylcholine receptors in the equatorial region of intrafusal muscle fibres modulate mouse muscle spindle sensitivity. (recherche-myologie.fr)
Furthermore, L-ITCcs are innervated by fibers enriched with metabotropic glutamate receptors 7a and/or 8a. (jneurosci.org)
The neural elements of somatosensory receptors in the hands and feet represent the distal extreme of long afferent fibers, and thus, are par- ticularly vulnerable in the distal axonopathies. (cdc.gov)
Intrinsic supra-linear dendritic mechanisms, including voltage gated calcium channels and metabotropic glutamate receptors, are recruited cooperatively to expand the dynamic range of sensory evoked dendritic calcium signals. (oist.jp)
Deep within skeletal muscles are receptors called muscle spindles . (ualberta.ca)
Your muscles are composed of two mechanoreceptors or sensory receptors. (bodybydave.com)
Muscle spindles are receptors responsible for keeping your muscles from over lengthening and the rate at which your muscles lengthen. (bodybydave.com)
The __________ is composed of the peripheral nerves, ganglia, and sensory receptors. (flashcardmachine.com)

Strains also usually hurt more than sprains because muscle tissue has more sensory nerve endings than ligaments. (learnmuscles.com)
Proprioception comes from sensory nerve endings that provide our brain with the information of the limb position. (moomoomathblog.com)
The neuromuscular theory claims that muscle overload and neuromuscular fatigue cause an imbalance between excitatory impulses from muscle spindles (a sensory end organ) and inhibitory impulses from Golgi tendon organs (GTOs- sensory nerve endings). (pranaphysiotherapy.ca)
By affecting thousands of sensory nerve endings that are embedded in these tissues creates this experience of "muscle release" which is often more of a proprioceptive or enteroceptive relayed experience. (maximumimpactptabq.com)

Alpha motor neuron Beta motor neuron Extrafusal muscle fiber Gamma motor neuron Type Ia sensory fiber Type II sensory fiber Casagrand, Janet (2008) Action and Movement: Spinal Control of Motor Units and Spinal Reflexes. (wikipedia.org)
A motor unit comprises a motor neuron in the spinal cord or brainstem together with the squad of muscle fibers it innervates. (medscape.com)
Immunohistochemical analyses of wildtype muscle spindles revealed a concentration of dystrophin and b-dystroglycan in intrafusal fibers outside the region of contact to the sensory neuron. (recherche-myologie.fr)
Can the sensory neuron network and the motor neuron network be considered separate networks? (stackexchange.com)
We generated sensory neuron-specific, Advillin-Cre knockout of SCOT (Adv-KO-SCOT) mice and characterized the structure and function of their somatosensory system. (bvsalud.org)
Here, using simultaneous voltage and calcium two-photon imaging of Purkinje neuron spiny dendrites, we show how coincident sub- and suprathreshold synaptic inputs modulate dendritic calcium signaling during sensory stimulation in awake mice. (oist.jp)
Purkinje neuron dendrites integrate these inputs in a time-dependent and non-linear fashion to enhance the sensory evoked dendritic calcium signal. (oist.jp)
The enhanced excitability at the spinal level results in an increase in alpha motor neuron discharge to muscle fibers and produces a localized muscle cramp. (pranaphysiotherapy.ca)
conversely, its contribution to peripheral sensory neuron function is more enigmatic. (elifesciences.org)
therefore, our data suggest that sensory neuron dysfunction contributes to the clinical manifestations of neurological disorders in which Na V 1.1 function is compromised. (elifesciences.org)
Since C-LTMRs belong to the unmyelinated sensory neuron population, we hypothesized that the development of C-LTMRs is also Runx1 dependent. (jneurosci.org)

Single-unit extracellular recordings of sensory afferents from muscle spindles of the extensor digitorum longus muscle revealed that muscle spindles from both dystrophic mouse strains have an increased resting discharge and a higher action potential firing rate during sinusoidal vibrations. (recherche-myologie.fr)
The H-reflex is a reflectory reaction of muscles after electrical stimulation of sensory fibers ( Ia afferents stemming from muscle spindles ) in their innervating nerves (for example, those located behind the knee ). (wikidoc.org)

What are two sensations regulated by somatic afferent fibers? (flashcardmachine.com)

Only 60% of the axons in the nerve to a given muscle are motor to the muscle fibers that make up the bulk of the muscle. (medscape.com)
The nerve supply branches within the muscle belly, forming a plexus from which groups of axons emerge to supply the muscle fibers. (medscape.com)
The axons supply single motor endplates placed about halfway along the muscle fibers. (medscape.com)
Having a look at the corpus callosum one sees that the axons passing the corpus callosum (the commissural fibers) connect mirror-symmetric counter regions of the cortex (roughly). (stackexchange.com)

The central nervous system integrates proprioception and other sensory systems, such as vision and the vestibular system, to create an overall representation of body position, movement, and acceleration. (sciencebeta.com)
To investigate, if proprioception is affected in dystrophic muscles, we analyzed muscle spindle number, morphology and function in wildtype mice and in murine models for two distinct types of muscular dystrophy with very different disease etiology, i.e. dystrophin- (DMDmdx) and dysferlin-deficient mice. (recherche-myologie.fr)

They constitute the muscle spindle, and are innervated by both sensory (afferent) and motor (efferent) fibers. (wikipedia.org)

The principal regulator of muscle tone is the small stretch-sensitive intramuscular unit called the muscle spindle. (humanneurobiology.com)
Muscle spindles are encapsulated units within the belly of a muscle that lie parallel to the muscle fibers, stretching when the muscle is stretched and shortening when the muscle contracts. (humanneurobiology.com)
When stretched, muscle spindles become activated, causing an increase in the impulse firing rate of afferent nerve fibers from the spindles to the spinal cord. (humanneurobiology.com)
These and other functions of the muscle spindles, as well as the tension-sensitive organs in tendons, will be discussed. (humanneurobiology.com)
Muscle spindles are found in all skeletal muscles. (humanneurobiology.com)
The greatest percentage of spindles are located in the belly of the muscle. (humanneurobiology.com)
A typical muscle spindle might contain up to eight chain and one or two bag fibers. (humanneurobiology.com)
A sudden muscle stretch sends a barrage of impulses into the spinal cord along the muscle spindle sensory fibers. (davidclaytonthomas.com)
Muscle fibers can broadly be divided into 3 muscles types: skeletal, cardiac, and smooth muscle. (medscape.com)
This article mainly focuses on the end organ of this complex interaction, the muscle fiber (myofiber). (medscape.com)
Likewise, the number of muscle fibers within each of these, as well as the shape of muscles (depending on their function), can also vary greatly. (medscape.com)
What remains constant, however, is that the muscle fibers are aligned in the same direction so that individual muscle fibers can work in concert. (medscape.com)
When the muscles fibers and the associated tendon are arranged along the same axis, the muscle is termed a parallel muscle. (medscape.com)
Each muscle fascicle represents a group of muscle fibers bound together by a layer of connective tissue termed the perimysium. (medscape.com)
In large muscles (eg, the flexors of the hip or knee), each motor unit contains 1200 or more muscle fibers. (medscape.com)
In small muscles (eg, the intrinsic muscles of the hand), each unit contains 12 or fewer muscle fibers. (medscape.com)
Muscle fibers are long and cylindrical in shape. (medscape.com)
When examined in cross-section, a typical muscle cell reveals between 4 and 6 nuclei, which lie just underneath the plasma membrane of the muscle fiber, the sarcolemma. (medscape.com)
Every millimeter of muscle fiber contains approximately 30 nuclei. (medscape.com)
Using this knowledge we characterized genetic strategies to label developing γ-MNs based on GDNF receptor expression, showed their strict dependence for survival on muscle spindle-derived GDNF and generated an animal model in which γ-MNs are selectively lost. (biomedcentral.com)
GFP display structural and synaptic features of γ-MNs and are selectively lost in mutants lacking target muscle spindles. (biomedcentral.com)
Loss of muscle spindles also results in the downregulation of Gfrα1 expression in some large diameter MNs, suggesting that spindle-derived factors may also influence populations of α-MNs with β-skeletofusimotor collaterals. (biomedcentral.com)
With these markers of γ-MN identity, we show after conditional elimination of GDNF from muscle spindles that the survival of γ-MNs is selectively dependent on spindle-derived GDNF during the first 2 weeks of postnatal development. (biomedcentral.com)
GFP and NeuN - and the selective dependence on muscle spindle-derived GDNF. (biomedcentral.com)
Deletion of GDNF expression from muscle spindles results in the selective elimination of γ-MNs with preservation of the spindle and its sensory innervation. (biomedcentral.com)
Muscle spindles provide proprioceptive information required for motor control. (biomedcentral.com)
Unlike other mechanoreceptors, the sensitivity of muscle spindles is actively regulated by a specialized fusimotor system. (biomedcentral.com)
Phylogenetically, γ-MNs are best developed in mammals, whereas lower vertebrates (for example, amphibians) use a β-skeletofusimotor system alone to control the sensitivity of their muscle spindles. (biomedcentral.com)
Ultrastructural identification of the primitive muscle spindle in the Xenopus laevis larvae. (xenbase.org)
The initial formation of muscle spindles was studied with electron microscopy using the toe muscle of Xenopus laevis. (xenbase.org)
At the larval stage 57 (Nieuwkoop and Faber 1967), muscle spindles were first identified primarily by the presence of sensory endings associated with a thin bundle of myotubes, e.g. intrafusal (IF) myotubes which were partly invested by a single cellular layer. (xenbase.org)
Development and regeneration of mammalian muscle spindles. (xenbase.org)
The spindle and extrafusal innervation of a frog muscle. (xenbase.org)
The three-dimensional cytoarchitecture of developing murine muscle spindles. (xenbase.org)
The fine structure of developing muscle spindles in the rat. (xenbase.org)
Postnatal increase of intrafusal fibers in the rat muscle spindle. (xenbase.org)
The early development of muscle spindles in the rat. (xenbase.org)
Stages in the development of cat muscle spindles. (xenbase.org)
Morphogenesis of rat muscle spindles after nerve lesion during early postnatal development. (xenbase.org)
Histological and histochemical observations on the capsule of the muscle spindle in normal and denervated muscle. (xenbase.org)
Unique sensory endings in rat muscle spindles. (xenbase.org)
Development of muscle spindles deprived of fusimotor innervation. (xenbase.org)
For example, in muscular dystrophies (MD), patients often experience sudden spontaneous falls, balance problems, as well as gait and posture abnormalities, suggesting the possibility of an impaired muscle spindle function. (recherche-myologie.fr)
The total number and the overall structure of muscle spindles in soleus muscles of the dystrophic mice appeared unchanged, demonstrating that intrafusal fibers are less affected by the degeneration compared to extrafusal fibers. (recherche-myologie.fr)
These results show alterations in muscle spindle afferent responses in dystrophic mouse muscles, which might cause an increased muscle tone, and might contribute to the unstable gait and frequent falls observed in patients with muscular dystrophy. (recherche-myologie.fr)
The spinal cord, about as thick as your finger, contains millions of nerve fibers that drive a vast array of bodily functions, including muscle control and sensory processing. (scientificamerican.com)
Specifically, these messages are generated by the joint's mechanoreceptors and the muscle spindles, which are specialized nerve cells in muscle fibers. (drdalgity.com)
H-reflex is analogous to the mechanically induced spinal stretch reflex (for example, knee jerk reflex ) because both cases muscle-spindle innervating fibers are activated. (wikidoc.org)
For example, sensors called muscle spindles that are embedded in muscle fibers measure the length and speed of muscle stretch, while other sensors in the skin respond to stretch and pressure. (sfn.org)
The muscle fibers inside the spindles are called intrafusal fibers , while the rest of the muscle fibers (which form the bulk of the muscle in the body) are called extrafusal fibers . (ualberta.ca)
Numbers of fusimotor nerve fibers paralleled numbers of muscle spindles, the target organs of fusimotor innervation, in hindlimb muscles. (omeka.net)
Muscle spindles and intrafusal fibers were absent in the soleus muscles of homozygous mutants, and were reduced by approximately 50% in heterozygous relative to wild type mice in accord with previous reports. (omeka.net)
This allows for more sarcomeres and sarcoplasm to be placed in the muscle fiber when a muscle hypertrophies after exercising. (learnmuscles.com)
Most people are familiar with static or corrective stretching, but don't realize that in order to get the most out of your stretches you need to break up adhesions in your muscles or which are also known as 'knots" before you can properly lengthen your elasticity of your muscle fibers completely. (bodybydave.com)
Finally, once you have finished torturing yourself and breaking up all that tightness you didn't even know existed take a minute to then stretch and lengthen out your muscle spindles. (bodybydave.com)
There was a time when it was believed that through the activation of the Muscle Spindle / Golgi-Tendon complex within all muscle / tendon units, greater flexibility could be achieved. (kreetankhabar.com)

These form a part of neuromuscular spindles. (wikipedia.org)

We used histological techniques to assess sensory neuronal populations, myelination, and skin and spinal dorsal horn innervation. (bvsalud.org)

This is an important capability, allowing the CNS to keep the spindles 'in tune' with the muscles. (humanneurobiology.com)
Bipennate muscles have muscles fibers inserting at an angle on both sides of a central tendon. (medscape.com)
Absorbs - stomach and intestinal lining (gut) Filters - the kidney Together these sheets and fibers and known as muscles, and control the movements of an organisms as well as many other contractile functions. (4build.eu)
This sensory input to the spinal cord allows feedback from muscles to modify the motor signals sent to them. (ualberta.ca)
The first type is called muscles spindles and the second is referred to as Golgi Tendon Organs (GTO's). (bodybydave.com)

We also examined cutaneous and proprioceptive sensory behaviors with the von Frey test, radiant heat assay, rotarod, and grid-walk tests. (bvsalud.org)

Nuclear chain fibers, on the other hand, have no central enlargement, and their nuclei are spread out in a chainlike fashion in the equatorial region of the fiber. (humanneurobiology.com)
Nuclear bag fibers typically have greater diameters and are longer than chain fibers. (humanneurobiology.com)

Few or no small-caliber (fusimotor) nerve fibers were present in the L4 ventral root of homozygous mutant mice lacking both copies of the neurotrophin-3 gene, and approximately one-half of the normal complement of the fibers was present in heterozygous mice having one copy of the neurotrophin-3 gene relative to wild type mice at two weeks of age. (omeka.net)

Nuclear bag fibers receive their name from the fact that their nuclei are clustered together in a baglike enlargement near the center of the fiber. (humanneurobiology.com)
Each fiber contains multiple nuclei, which are pushed to the periphery of the cell. (medscape.com)
It contains both sensory and motor nuclei. (brainscape.com)
Vestibular nuclei of the medulla which relays sensory information to the inner ear (vestibular apparatus). (ualberta.ca)

They bear two types of sensory ending, known as annulospiral and flower-spray endings. (wikipedia.org)

The spinal nerves consist of the sensory nerve roots, which enter the spinal cord at each level, and the motor roots, which emerge from the cord at each level. (medscape.com)
The cell bodies of the sensory nerves are located in the dorsal root ganglia. (medscape.com)
Mechanoreceptors - specialized structures that respond to mechanical pressure within tissues and then transmit signals through sensory nerves. (thehealthygamer.com)
The procedure allows simultaneous recordings from many sensory nerves during normal motor activities such as walking. (sfn.org)

Membrane voltage oscillations in layer 1 of primary sensory cortices might be important indicators of cortical gain control, attentional focusing, and signal integration. (oist.jp)
Andersen P, Andersson SA, Lomo T (1967) Nature of thalamo-cortical relations during spontaneous barbiturate spindle activity. (yale.edu)
Contreras D, Destexhe A, Steriade M (1997) Spindle oscillations during cortical spreading depression in naturally sleeping cats. (yale.edu)
The completion of cortical processing through the primary, associative, and integrative sensory areas initiates a similar progression of motor processing, usually in different cortical areas. (foobrdigital.com)
Whereas the sensory cortical areas are located in the occipital, temporal, and parietal lobes, motor functions are largely controlled by the frontal lobe (See Figure 13.7). (foobrdigital.com)

This allows for continuous control of the mechanical sensitivity of spindles over the wide range of lengths and velocities that occur during normal motor behaviors [ 1 ]. (biomedcentral.com)

Surprisingly, not only did we find that spindle-generating TRN circuits engage in attentional processing, but we also discover that this engagement involves alpha oscillations, a waking rhythm with computational properties similar to spindles. (frontiersin.org)
Two-photon line scans (f) reveal sleep spindles in layer 1 (g) and oscillations (h,j). (oist.jp)
Contreras D, Destexhe A, Sejnowski TJ, Steriade M (1997) Spatiotemporal patterns of spindle oscillations in cortex and thalamus. (yale.edu)

Destexhe A, Contreras D, Sejnowski TJ, Steriade M (1994) A model of spindle rhythmicity in the isolated thalamic reticular nucleus. (yale.edu)

The white matter at the cord's periphery contains ascending and descending tracts of myelinated sensory and motor nerve fibers. (msdmanuals.com)
Ascending tracts that transmit sensory information to the brain occupy the __________ and external __________ portions of the cord, such as the dorsal __________ and __________ tracts. (flashcardmachine.com)

Sensory stimulation evokes subthreshold excitatory and inhibitory post-synaptic potentials, that coincide with suprathreshold dendritic spikes triggered by climbing fiber and parallel fiber synaptic input. (oist.jp)

Large cored vesicles resembling the neurosecretory vesicles occurred in sensory and motor endings as well as in intramuscular nerve fibers. (xenbase.org)

Groundbreaking work conducted by Douglas J. Weber, PhD, at the University of Alberta, Edmonton, Canada, and his colleagues has led to the development of an implantable microelectrode array that can record neural sensory responses resulting from movements of the leg. (sfn.org)

Let's start with sensory stimuli that have been registered through receptor cells and the information relayed to the CNS along ascending pathways. (foobrdigital.com)

Sensory endings were smaller in size and in number per spindle than those in the adult, forming irregular beaded chains with occasional tubular expansions. (xenbase.org)

The vesicles may be involved in the neuronal influence upon the spindle differentiation. (xenbase.org)

Depending on its pathogenesis, spinal cord disease can manifest with variable impairment of motor , sensory, or autonomic function. (medscape.com)
Electron microscopy of the motor end-plate and the neuromuscular spindle. (xenbase.org)
Relearning like this gave me a huge aha moment - in my wobbly attempts at ballet dancing the supported spindle in what had thus far been my "wrong" hand I recognized the struggle my students went through in learning the fine motor skills needed for supported spindle spinning. (waltin.se)
Our results suggest that the sensory input via NMES was inadequate to change the beta-band CMC, corticospinal excitability, and voluntary motor output. (biomedcentral.com)
These results suggested that the sensory input via NMES may affect CMC and motor performance, although the evidence has been inconclusive. (biomedcentral.com)

The posterior (dorsal) horns contain sensory fibers that originate in cell bodies in the dorsal root ganglia. (msdmanuals.com)

When a joint is adjusted, certain messages (sensory inputs) are generated and sent to the brain. (drdalgity.com)

Bourassa J, Deschênes M (1995) Corticothalamic projections from the primary visual cortex in rats: a single fiber study using biocytin as an anterograde tracer. (yale.edu)
In the cerebral cortex, the initial processing of sensory perception progresses to associative processing and then integration in multimodal areas of cortex. (foobrdigital.com)

This is achieved through the complex interaction of the musculoskeletal system with the pyramidal, extrapyramidal, and sensory components of the nervous system. (medscape.com)

Here, we provide an alternative explanation for this correlation: common thalamic circuits regulate sensory processing across sleep and attention, and their disruption may lead to correlated dysfunction. (frontiersin.org)
As such, we propose that common thalamic circuit principles regulate sensory processing in a state-invariant manner and that in certain disorders, targeting these circuits may be a more viable therapeutic strategy than considering individual states in isolation. (frontiersin.org)
These findings support a model in which common thalamic circuits regulate sensory processing across sleep and attention, and suggest that targeting these circuits or their computational principles may be an effective therapeutic strategy in neurodevelopmental disorders. (frontiersin.org)

New research of myofascial release describes it in a way that says we are likely not creating morphological changes in the fascia itself, but rather effecting fluids and fibers depending on the type of pressure you're pushing into those tissues. (maximumimpactptabq.com)

Anatomy79

Organisms24

Diseases9

Chemicals and Drugs60

Analytical, Diagnostic and Therapeutic Techniques and Equipment24

Psychiatry and Psychology6

Phenomena and Processes60

Disciplines and Occupations2

Technology, Industry, Agriculture7

Information Science6

Health Care3

Intrafusal muscle7

Neurons41

Extrafusal muscle3

Receptors16

Nerve endings4

Neuron11

Afferents2

Afferent fibers1

Axons4

Proprioception2

Efferent1

Muscle56

Neuromuscular spindles1

Innervation1

Muscles5

Proprioceptive sensory1

Chain fibers2

Fusimotor1

Nuclei4

Types of sensory1

Nerves4

Cortical5

Sensitivity1

Oscillations3

Thalamic reticul1

Tracts2

Inhibitory1

Intramuscular1

Responses1

Stimuli1

Endings1

Neuronal1

Motor5

Cell bodies1

Inputs1

Cortex2

Nervous1

Regulate3

Tissues1