• In man this organ is rudimentary, but in many of the lower animals it is well developed (Fig. 673), and probably plays a part in the sense of smell, since it is lined with epithelium similar to that covering the olfactory region, and is supplied by branches of the olfactory nerve. (co.ma)
  • The functional units of the lateral line are the neuromasts, discrete mechanoreceptive organs that sense movement in water. (wikipedia.org)
  • Superficial neuromasts are on the surface of the body, while canal neuromasts are along the lateral lines in subdermal, fluid-filled canals. (wikipedia.org)
  • In contrast, the structure of canal organs allow canal neuromasts more sophisticated mechanoreception, such as of pressure differentials. (wikipedia.org)
  • The anamniote lateral line system, comprising mechanosensory neuromasts and electrosensory ampullary organs, is a useful model for investigating the developmental and evolutionary diversification of different organs and cell types. (elifesciences.org)
  • These electrical impulses are then transmitted along afferent lateral neurons to the brain. (wikipedia.org)
  • Lateral lines are usually visible as faint lines of pores running along each side of a fish's body. (wikipedia.org)
  • Sound passing through the water as pressure waves is picked up by a 'lateral line' system that runs along the midline of each of the fish's flanks. (petmd.com)
  • with a lateral line, the fish's body is pointing toward the direction it was looking when it was in the aquarium. (bettafishworld.com)
  • Betta fish have a wide array of colors and patterns in their eyes, but the lateral lines in the fish's eye are probably one of the easiest to recognize because they appear like horizontal barbs or hooks, pointing downward. (bettafishworld.com)
  • Early in the evolution of fish, some of the sensory organs of the lateral line were modified to function as the electroreceptors called ampullae of Lorenzini. (wikipedia.org)
  • The lateral line organs (and in sharks, ampullae of Lorenzini - small pores that detect hydrostatic changes and electrical charges int he water - as well) are how fish sense changes in pressure and low-level vibrations, like a thrashing, injured animal. (scienceforums.net)
  • Fish use these senses to locate food and to communicate by means of receptors concentrated in the mouth, nasal openings, and around the head. (petmd.com)
  • The superior part of the vestibule is smooth, and is limited above and posteriorly by a slightly marked arched prominence, the limen nasi, beyond which the nasal cavity is lined with mucous membrane. (co.ma)
  • Until the seventh year the nasal septum lies, as a rule, in the median plane, but after this age it is very often bent to one or other side-more frequently to the right-the deflection being greatest usually along the line of junction of the vomer with the perpendicular lamina of the ethmoid. (co.ma)
  • This is the vomero-nasal organ of Jacobson, and is supported by the vomero-nasal cartilage. (co.ma)
  • The middle meatus, situated below and lateral to the middle nasal concha, is a roomy passage, and is continued forwards into a slightly depressed area, termed the atrium meatus nasi, which lies immediately above the vestibule. (co.ma)
  • When the middle nasal concha has been removed the lateral wall of the meatus is exposed. (co.ma)
  • showing position of the vomero-nasal organs. (co.ma)
  • From this epithelial lining of the primitive gut, organs like the digestive tract, liver, pancreas, and lungs develop. (asu.edu)
  • Eight leading causes of mortality and morbidity from NCDs in the WHO European Region are cardiovascular diseases, neuropsychiatric disorders, cancer, digestive diseases, respiratory diseases, sense organ disorders, musculoskeletal diseases and diabetes mellitus. (vertalen.nu)
  • The entire digestive tract is relatively simple in terms of the organs involved, which are connected in a continuous musculo-membanous tube from mouth to anus. (svenskkirurgi.se)
  • The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. (wikipedia.org)
  • They generate this field by emitting pulses from an organ near the tail and pick up changes with sensory receptors near the head or by using their lateral line. (petmd.com)
  • The lateral line system is ancient and basal to the vertebrate clade, as it is found in fishes that diverged over 400 million years ago. (wikipedia.org)
  • The lateral line system enables predatory fishes to detect vibrations made by their prey, and to orient towards the source to begin predatory action. (wikipedia.org)
  • Blinded predatory fishes remain able to hunt, but not when lateral line function is inhibited by cobalt ions. (wikipedia.org)
  • One function of schooling may be to confuse the lateral line of predatory fishes. (wikipedia.org)
  • This makes it difficult for predatory fishes to identify individual prey through lateral line perception. (wikipedia.org)
  • The ganglion nodosum has possible connexions with epibranchial sense-organs-the rest of the nerve representing the fused branchial nerves of fishes. (co.ma)
  • To breathe underwater, fish have developed special organs called gills . (msdvetmanual.com)
  • Featues of Osteichthes (sometimes called Teleosts in older publications) include being a cold blooded critter with a bony skeleton, skull, fins with spines and rays, a swimbladder used to control buoyancy, outwardly orientated gills, and have a unique sense organ called a lateral line. (rl180reef.com)
  • Zebrafish neuromast development is increasingly well understood, but neither zebrafish nor Xenopus is electroreceptive and our molecular understanding of ampullary organ development is rudimentary. (elifesciences.org)
  • Endoderm forms the epithelium-a type of tissue in which the cells are tightly linked together to form sheets-that lines the primitive gut. (asu.edu)
  • The organization of the bundles within their organs is seemingly haphazard, incorporating various shapes and sizes of microvilli within bundles. (wikipedia.org)
  • The nervous system only consists of nerve bundles which control the organs and organ systems. (rl180reef.com)
  • Work in zebrafish has demonstrated that arterial and venous endothelial precursors arise from distinct subsets of lateral plate mesoderm. (bvsalud.org)
  • HN - 2008 MH - Superior Sagittal Sinus UI - D054063 MN - A07.231.908.224.667 MS - The long large endothelium-lined venous channel on the top outer surface of the brain. (bvsalud.org)
  • HN - 2008 MH - Transverse Sinuses UI - D054064 MN - A07.231.908.224.833 MS - The two large endothelium-lined venous channels that begin at the internal occipital protuberance at the back and lower part of the CRANIUM and travels laterally and forward ending in the internal jugular vein (JUGULAR VEINS). (bvsalud.org)
  • A few years ago, bettas were the first aquatic species to be shown to use lateral lines to see underwater and hunt for food. (bettafishworld.com)
  • The lateral line has a strong sensitivity to color, but it can also detect dark underwater. (bettafishworld.com)
  • Its efferent fibres are in series with those of the glossopharyngeal above and the accessory nerve below, and belong to the lateral series of His. (co.ma)
  • While the relation of the nerve to the hinder gill-arches and clefts makes it possible to understand the innervation by the vagus of the heart and lungs, no satisfactory explanation is forthcoming of the passage of the nerve into the abdomen, and its distribution to the stomach and other organs below the diaphragm. (co.ma)
  • The internal ramus (accessory portion) of the nerve consists of efferent fibres for the branchial region, in series with the lateral motor roots of the glossopharyngeal and vagus nerves. (co.ma)
  • The optic nerve, optic chiasma, and optic tract are then to be looked upon as cerebral commissures, and not as nerves in the ordinary sense. (co.ma)
  • The lateral line allows fish to navigate and hunt in water with poor visibility. (wikipedia.org)
  • Some betta fish will even use their lateral lines to hunt for insects or worms, but these types of fish rarely get very far. (bettafishworld.com)
  • Validation of a subset reveals expression in developing ampullary organs of transcription factor genes critical for hair cell development, and genes essential for glutamate release at hair cell ribbon synapses, suggesting close developmental, physiological and evolutionary links between non-teleost electroreceptors and hair cells. (elifesciences.org)
  • The why of this is most likely that they are sensing weather patterns - like the severe drop in pressure would be associated with an approaching tropical storm down here in Florida, and the fish would seek deeper water to stay out of the turbulence of the storm surge. (scienceforums.net)
  • We have used RNA-seq to generate a lateral line-enriched gene-set from late-larval paddlefish ( Polyodon spathula ). (elifesciences.org)
  • When a betta is confronted with a moving object or a predator, he can respond by raising his tail, but if he senses nothing underneath the water's surface, he will often raise his head, just like a human being would. (bettafishworld.com)
  • Many people underestimate these animals thinking that only cats and dogs can sense their owners' moods and feel compassion. (giobelkoicenter.com)
  • Fish have a unique internal organ known as the swim bladder or air bladder. (msdvetmanual.com)
  • A few well-chosen fish will add color, movement and an increased sense of realism to a reef tank. (rl180reef.com)
  • Superficial organs are exposed more directly to the external environment. (wikipedia.org)
  • Some fish also have an extra sense called 'electroreception,' which works because their environment is an electrolytic solution - in other words, it conducts electricity. (petmd.com)
  • Lateral lines play an important role in schooling behavior, predation, and orientation. (wikipedia.org)
  • It is important organ for your fish to look after, as your eyes are what is going to give you the first indication that your fish is in distress or needs some sort of attention. (bettafishworld.com)
  • You first have to make sure that they are internally consistent and make sense, both in terms of cause-and-effect, and with respect to the numbers and the units associated with those numbers. (cdc.gov)
  • They look like horizontal barbs, but they aren't, and instead, they are a series of small holes that line the eye. (bettafishworld.com)
  • We identify an ampullary organ-specific proneural transcription factor, and candidates for the voltage-sensing L-type Ca v channel and rectifying K v channel predicted from skate (cartilaginous fish) ampullary organ electrophysiology. (elifesciences.org)
  • If you're not familiar with lateral lines, then you should consider it the same way you think of magnetic signs on a compass. (bettafishworld.com)