• When the reflex responses do not present, this could mean that the spinal cord, nerve root, peripheral nerve, or muscle has been injured/damaged in some way. (dralexjimenez.com)
  • The brain stem is the rostral continuation of the spinal cord and its motor and sensory components are similar in structure to that of the spinal cord. (mhmedical.com)
  • This is not a reflex , per se, in that the nerve potential travels from the site of the stimulating electrode in the limb to the spinal cord and back to the limb in the same nerve that was stimulated. (wikidoc.org)
  • This also evaluates conduction between the limb and the spinal cord, but in this case, the afferent impulses (those going towards the spinal cord) are in sensory nerves while the efferent impulses (those coming from the spinal cord) are in motor nerves. (wikidoc.org)
  • Sensory nerves travel to the brain via the spinal cord. (yahoo.com)
  • In addition to the muscles and brain, spastic paraplegia type 15 affects the peripheral nervous system, which consists of nerves connecting the brain and spinal cord to muscles and sensory cells that detect sensations such as touch, pain, heat, and sound. (medlineplus.gov)
  • The spinal cord: Reflexes such as the knee jerk become very brisk under LSD. (erowid.org)
  • In chronic lung diseases, activation of airway sensory nerves initiate respiratory reflexes including cough for which there is currently no safe and effective treatment. (ersjournals.com)
  • These data suggest that TRPM3 is expressed in airway sensory neurons and that activators of TRPM3 cause functionally relevant activation of airway nerves. (ersjournals.com)
  • An abnormal reflex response could also be caused by a disruption of the sensory (feeling) or motor (movement) nerves and sometimes both. (dralexjimenez.com)
  • The information herein on " Sensory Nerves and Deep Tendon Reflexes " is not intended to replace a one-on-one relationship with a qualified health care professional or licensed physician and is not medical advice. (dralexjimenez.com)
  • Overall, the present data suggest that acute repair of neonatal peripheral nerves with fibrin sealant results in neuroprotection and regeneration of motor and sensory axons. (hindawi.com)
  • A nerve conduction study (NCS) is a test commonly used to evaluate the function, especially the ability of electrical conduction , of the motor and sensory nerves of the human body . (wikidoc.org)
  • The F-wave study evaluates conduction velocity of nerves between the limb and spine, whereas the motor and sensory nerve conduction studies evaluate conduction in the limb itself. (wikidoc.org)
  • A sneeze is initiated when sensory nerves in our nose are stimulated by an irritant such as allergens, viruses, bacteria or even fluid. (yahoo.com)
  • The sensory nerves then carry this irritant information to the brain. (yahoo.com)
  • The trigeminal nerves are the largest of our 12 pairs of cranial nerves and the largest sensory nerves in the body. (yahoo.com)
  • The left and right trigeminal nerves carry sensory information from the face to the brain. (yahoo.com)
  • The sensory nerves that carry pain and irritant signals are narrow, whereas those that carry touch information are wider and faster. (yahoo.com)
  • The tear causes pain due to irritation of sensory nerves in the disk, and. (msdmanuals.com)
  • The neurological features include impaired reflexes and symmetrical motor and sensory deficits in the extremities. (nih.gov)
  • There was no history of fever or symptoms suggestive of raised intracranial pressure, seizures, or focal motor or sensory deficits. (bmj.com)
  • There was no tremor and no sensory deficits. (bmj.com)
  • Sciatic nerve transection, early after birth, results in significant degeneration of spinal motoneurons as well as sensory neurons present in the dorsal root ganglia. (hindawi.com)
  • Extracellular ATP has been reported to mediate excitation of sensory neurons via P2X receptors, which are ligand-gated ion channels. (jneurosci.org)
  • Some of the dishes contained sensory neurons, and others contained motor neurons, which in the snail are responsible for the reflex. (sciencedaily.com)
  • When a marine snail is given electric tail shocks, its sensory neurons become more excitable. (sciencedaily.com)
  • Adding RNA from a marine snail that was not given the tail shocks did not produce this increased excitability in sensory neurons. (sciencedaily.com)
  • We aimed to characterise the role of TRPM3 in airway sensory nerve activation and the cough reflex. (ersjournals.com)
  • The sensory nerve/s give the sensation to the skin known as dermatomes . (dralexjimenez.com)
  • In the late 1960s, neurophysiologic testing allowed the classification of CMT into 2 groups, one with slow nerve conduction velocities and histologic features of a hypertrophic demyelinating neuropathy (hereditary motor and sensory neuropathy type 1 or CMT1) and another with relatively normal velocities and axonal and neuronal degeneration (hereditary motor and sensory neuropathy type 2 or CMT2). (medscape.com)
  • Burnstock (1999) recently put forward a hypothesis about purinergic mechanosensory transduction that proposed that in hollow organs, including the ureter and bladder, distension causes release of ATP from epithelial cells lining these organs and that ATP can then activate P2X 3 receptors on subepithelial sensory nerve terminals to evoke neural discharge. (jneurosci.org)
  • Sensory NCS are performed by electrical stimulation of a peripheral nerve and recording from a purely-sensory portion of the nerve, such as on a finger. (wikidoc.org)
  • H-reflex study uses stimulation of a nerve and recording the reflex electrical discharge from a muscle in the limb. (wikidoc.org)
  • The interpretation of nerve conduction studies is complex, but in general, different pathological processes result in changes in latencies, motor and/or sensory amplitudes, or slowing of the conduction velocities to differing degrees. (wikidoc.org)
  • Another example, slowing across the wrist for the motor and sensory latencies of the median nerve indicates focal compression of the median nerve at the wrist, called carpal tunnel syndrome . (wikidoc.org)
  • Activating the trigeminal touch nerve, can overwhelm the sneeze reflex. (yahoo.com)
  • Within each trigeminal nerve are thousands of individual nerve branches that each carry a specific type of sensory information . (yahoo.com)
  • There was no objective sensory finding and no cranial nerve lesions. (who.int)
  • The results of median sensory-motor, sural sensory and post-tibial motor nerve conduction studies were normal. (who.int)
  • Capitolo dal titolo 'Physiology of the Cough Reflex: Sensory and Mechanical Features' in 'Cough: Pathophysiology, Diagnosis and Treatment' A. Zanasi et al. (unifi.it)
  • Physiology of the Cough Reflex: Sensory and Mechanical Features / Donatella Mutolo, Ludovica Iovino, Elenia Cinelli, Fulvia Bongianni, Tito Pantaleo. (unifi.it)
  • Cottrell specialised in sensory neurophysiology, ruminant and equine alimentary physiology, and equine gastroenterology. (wikipedia.org)
  • Absent reflexes are also clues to other conditions/injuries. (dralexjimenez.com)
  • Achilles and patellar tendon reflexes were absent. (who.int)
  • Sensory and motor functions are normal, as are Romberg test results and gait. (cdc.gov)
  • that is, in FES gait training, FES-induced sensory inputs in specific phases would interact with walking-induced cortical activity to induce neuroplastic changes. (frontiersin.org)
  • Thus, synchronization of cortical activation with sensory inputs and the facilitation of corticospinal excitability are related to improvements of gait functions. (frontiersin.org)
  • Deep tendon reflexes are normal and symmetrical. (cdc.gov)
  • The discovery of TRPM3 as a regulator of airway reflexes suggests it may be a novel target for antitussive therapy. (ersjournals.com)
  • Assess the ability of an unconscious victim to protect the airway by checking the gag reflex. (medscape.com)
  • Ion channels on sensory afferents can activate these reflexes and as such are attractive therapeutic targets. (ersjournals.com)
  • We only carry sensory testers that are easy to use and safe for your patients. (scriphessco.com)
  • The aim of this study was to establish optimal electric stimulation parameters for intraoperatively monitoring the bulbocavernosus reflexes (BCRs) in infants. (thejns.org)
  • 2021) demonstrate that tactile reflexes are driven by excitatory modules defined by location, while Peirs et al. (nih.gov)
  • The location of the DSG within the NTS , which is the primary sensory relay, is convenient for peripheral input to shape the output of the network so that the swallowing movements correspond to the swallowed bolus. (nature.com)
  • Her reflexes revealed 1+ biceps, brachioradialis, and triceps reflex. (aao.org)
  • This is then followed by contraction of the diaphragm and rib muscles, reflex closing of the eyes and a strong exhalation. (yahoo.com)
  • This may be consistent if the patient becomes quiet and withdrawn but may become marked with tremor, jactitation, ataxia, heightened reflex response, trismus, forced laughter and spasm of the throat muscles. (erowid.org)
  • Left upper limb proximal muscles were wasted with diminished power and reflexes. (bvsalud.org)
  • He graduated from the University of Liverpool, Faculty of Veterinary Science in 1970 going on to gain his Ph.D.on "Duodenal Sensory and Reflex Mechanisms" from The University of Edinburgh in 1981. (wikipedia.org)
  • 5. The cortex: The distinction between objective motor phenomena and subjective states related to effects on sensory and association mechanisms is clinically apparent. (erowid.org)
  • Inherited neuropathies in which autonomic or sensory features predominate, conditions in which the neuropathy is part of a multiple-organ disturbance, and neuropathies with specific metabolic dysfunction are not discussed. (medscape.com)
  • Her sensory exam showed light touch, pain, and temperature to be intact. (aao.org)
  • This includes touch, pain and irritation sensory information from the facial skin and from inside the nose and mouth. (yahoo.com)
  • This is a reflex , which is an involuntary muscular response generated by the hammer tapping the tendon . (dralexjimenez.com)
  • We measured motor evoked potentials and Hoffmann-reflexes to assess corticospinal and spinal reflex excitability at rest before and after the 20-min FES with and without the AO + MI. (frontiersin.org)
  • Determining where the neural problem might be, a physician will test reflexes in various parts of the body. (dralexjimenez.com)
  • The orgastic reflex is difficult to obtain, but this maybe due to loss of concentrationo Considerable disturbance of sensory perception. (erowid.org)
  • Upper and lower limb innervation is greatly affected by brachial and lumbosacral plexus lesion, leading to loss of motor and sensory function [ 1 - 7 ]. (hindawi.com)
  • Brachial plexus lesion results in loss of motor and sensory function, being more harmful in the neonate. (hindawi.com)
  • The present study investigates the transient effects of 20-min of FES simultaneously with and without AO + MI of walking on corticospinal and spinal reflex excitability in able-bodied participants. (frontiersin.org)
  • Reflex cough shares similar features with the corresponding voluntary or behavioral motor acts. (unifi.it)
  • The sensory testers include the baseline Taylor hammer, Wartenburg pinwheel and Baseline monofilaments. (scriphessco.com)
  • The shocks enhance the snail's defensive withdrawal reflex, a response it displays for protection from potential harm. (sciencedaily.com)