Neurologist in a sentence | neurologist example sentences. Found inside – Page 171Myelin sheath increases the velocity ofconduction of nerve impulse and reduces the energy expenditure in the conduction of impulse. myelin sheath a layer of fatty protein that protects the nerves. (noun) What does myelitis mean? The hallmark of the disease is the emergence of multiple areas of inflammation and scarring of the protective myelin sheath that covers nerve fibers. Found inside – Page 270Myelinated axons are surrounded by a multi-layered lipoprotein covering called a myelin sheath. Two neuroglial cells, the oligodendrocytes (CNS) and the ... • MYELIN SHEATH (noun) The noun MYELIN SHEATH has 1 sense:. Found inside – Page 59This comes about because the myelin sheath , which consists of a large number of layers of glial plasma membrane wrapped about the axon , acts as an ... Found inside – Page 333Some axons are surrounded by a segmented myelin sheath. ... myel/o = spinal cord Axon A Dendrites B Write a term in each blank to complete these sentences. myelin sheath. Axons were enveloped by, 21. 10. : the insulating covering that surrounds an axon with multiple spiral layers of myelin, that is discontinuous at the nodes of Ranvier, and that increases the speed at which a nerve impulse can travel along an axon. (3) Most neurons are insulated by a myelin sheath formed by cells ( Schwann cells ) surrounding the axons. Found inside – Page xiii... i.e., the myelin sheath surrounding certain nerve fibers. ... when for several months already they have been able to understand simple sentences? When referring to the sheath, you are referring to the covering which is made of myelin. (open, save, copy) dailymail.co.uk that surrounds nerve fibres, including in the brain. noun. Multiple sclerosis occurs when the body launches an immune system attack against itself, destroying the, 19. (open, save, copy) en.wikipedia.org. Meaning of myelin sheath. Found inside – Page 69Several bundles are enclosed by the outermost layer called the epineurium. myelination of axon The axons of many neurons are covered by a myelin sheath. Found inside – Page 14As stated before , the axons may or may not be covered with myelin sheath . In myelinated axons , the myelin sheath appears as a tube surrounding the axon ... 12. myelin sheath in British English. The covering of myelin found around the axons of certain nerve fibres, formed in the peripheral nervous system by Schwann cells and in the central nervous system by oligodendrocytes. Found inside – Page 130These facts prompt the question as to what neuroprotective properties are associated with a well-developed myelin sheath. Three assets come to mind: (1) The ... ... Because degenerative myelopathy is a demyelinating disease, or one that destroys the myelin sheath around each nerve, it has a poor prognosis. The myelin sheath wraps around the fibers that are the long threadlike part of a nerve cell. At the same time following surgery, the, 5. Myelin sheaths are sleeves of fatty tissue that protect your nerve cells from damage (). Examples of Axon in a sentence. What does myelin sheath mean? Filamentous neurofibrils and mitochondria were observed in axons. Dictionary entry overview: What does myelin sheath mean? Login; ... For example, slowing of the NCV usually indicates there is damage to the myelin. Examples of how to use “demyelination” in a sentence from the Cambridge Dictionary Labs The myelin sheath is a fatty substance that surrounds axons. In order to build these sheaths, the brain needs a fatty substance called myelin. Myelin definition is - a soft white material that forms a thick layer around the axons of some neurons and is composed chiefly of lipids (such as cerebroside and … English MS is currently an incurable disease, resulting from an impaired immune system, which leads to damage of the myelin sheath. Copyright © 2016 sentencedict.com All Rights Reserved Contact: Meaning: n. a layer of myelin encasing (and insulating) the axons of medullated nerve fibers. the myelin sheath proteins were sequenced, a protein database was searched for similar bacterial and viral sequences, and laboratory tests were performed to determine if the T-cells attacked these same proteins. Myelin is a lipid-rich sheath that surrounds the axon and by doing so creates a myelin sheath that facilitates the transmission of electrical signals along the axon. Found inside – Page 282Nearly two decades ago , F. O. Schmitt and his associates9,28 gave the first detailed account of the highly ordered , layered structure of the myelin sheath ... To destroy or remove the myelin sheath of a … In the peripheral nervous system, the sheath is formed from the membrane of the Schwann cell, and in the central nervous system it is formed from oligodendrocytes. Found insideIt is concentrated in the inner periaxonal membrane of the myelin sheath and probably absent from the compact multilamellar myelin sheath. Found insideCholesterol is particularly important in the myelin sheath, which surrounds the axon of the neuron. Although several types of fatty acids make up the ... Therefore, these are the only spots on the axon that allow electrical activity, and are effectively depolarized. Found inside – Page 51Oligodendrocyte Lateral loop Node of Ranvier Nucleus Outer loop Axon Longitudinal incisures Inner loop Myelin sheath Fig. 3.13 The ensheathment of a number ... Found inside – Page 625l ~1 mmnodes of Ranvier layers of myelin axon axon nucleus (A) axon axon glial cell node of Ranvier (C) myelin sheath (B) 1 μm myelin sheath inactivate ... have also been observed to induce Oligodendrocyte (, This was causing pressure on the nerve root causing loss of, In fact, it's a breakdown in the protective coating, the, He performed research of nerve fibers and the, In multiple sclerosis, an inflammatory, Th1-type response destroys proteins in the, RESULTS: After trauma, some neurons displayed histopathologic changes of necrosis and apoptosis, axon, Such a compression can injure the nerve's protective, Alexander disease belongs to leukodystrophies, a group of diseases that affect the growth or development of the, The accumulated and embedded VLCFA in the complex lipids could lead to the destabilization of, Number and diameter of mean nerve fibre in unit area of transverse plane, diameter of axon and depth of, In adults and children over the age of one-and-a-half years, the. (4) At the same time following surgery, the myelin sheath thickness and the cross section area of … Found inside – Page 132Figure 8.6 Myelin structure. The myelin sheath is an extension of the cell in which most of the cytoplasm is extruded and apposed phospholipid bilayers of ... Found inside – Page 95The localization of Cx32 adds further evidence to the idea that the Schwann cell myelin sheath is composed of two distinct domains: (1) the compact myelin ... Found inside – Page 800MYELINATION Myelination is a process whereby certain individual axons are wrapped in a sheath of lipid called myelin. The myelin sheath serves as a protective and an insulating coating for the axon, and enhances the speed of conduction ... Found inside – Page 319Myelin sheath junction NodeofRanvier The basic parts of a neuron are the cell ... parts of the axon Write a term in each blank to complete these sentences. TGF-? The electron microscope was used to study the histomorphologic changes of, 23. Tasaki is credited with discovering the insulating function of the myelin sheath. The insulating envelope of myelin that surrounds the core of a nerve fiber … an insulating sheath, composed of myelin, around certain nerve fibres. . This book examines the role of neurons in multiple sclerosis (MS) and the changes that occur in neurons as a result of MS. It places MS in a new and important perspective that not only explains the basis for symptom production, remission, ... Found inside – Page 44Table 5.1 Electrical resistance and capacitance of the myelin sheaths of frog and Penaeus japonicus Frog (Hodgkin 1964) P. japonicus (Kusano 1966) External ... But any minute now the neurologist would reappear. Inflammation of the spinal column. medullary sheath At the same time following surgery, the myelin sheath thickness and the cross section area of myelinated nerves in... 3. bab.la is not responsible for their content. Information and translations of myelin sheath in the most comprehensive dictionary definitions resource on the web. Found inside – Page 73( 7 ) HIRANO , A. , DEMBITZER , M. A structural analysis of the myelin sheath in the central nervous system . J. Cell Biol . , 1967 , 34 . 555-567 . — called also medullary sheath. Number and diameter of mean nerve fibre in unit area of transverse plane, diameter of axon and depth of, 17. 819 English sentences using 'myelin' Toggle navigation. All axons from the enteric nerve cells lack a, The hallmark of the disease is the emergence of multiple areas of inflammation and scarring of the protective, In this disorder, your immune system mistakenly attacks the, It also may harm processes of the oligodendroglia, cells found in the central nervous system that form the, Myelin basic protein demonstrated immunocytochemically in oligodendroglia prior to, Schwab and his colleagues discovered several years ago that growth-inhibiting proteins reside in the, We have isolated the gene encoding the Schwann cell glycoprotein P0, the major structural protein of the peripheral, The histological examination was restricted to the endoneurium and the. It should be noted that we have also tried to insulate the QTF electrodes to perform the measurements directly in buffer solutions, as … Found inside – Page 4555M88 ] BT Myelin sheath Nerve tissue proteins NT Myelin basic protein Myelin sheath ( QP752.M9 ( Biochemistry ) , ( RC366 ( Neuropathology ) UF Medullary ... Learn how to use Myelin Sheath in a sentence and make better sentences with word `Myelin Sheath` by reading from 24 Myelin Sheath sentence examples. Found inside – Page 313( c ) Three dimensional representation of the myelin sheath as revealed by the electron microscope . ( a ) effector neurone Nerves are made up of neurones ... "Because there is no myelin damage at birth, we assumed prions are needed to maintain the quality of the. Found inside – Page 46Mugnaini, E., and Schnapp, B., 1974, Possible role of zonula occludens of the myelin sheath in demyelinating conditions, Nature (London) 251:725. Found inside – Page 25D. CNS Myelin Sheath Mature CNS myelin sheaths closely resemble peripheral myelin by virtue of their having been formed from a cell process from a ... Definition of myelin sheath in the Definitions.net dictionary. 12. (ˈmaɪəlɪn ʃiːθ) noun. Ensheathed means to have something wrapped around it. 1. a layer of myelin encasing (and insulating) the axons of medullated nerve fibers Familiarity information: MYELIN SHEATH used as a noun is very rare. 3.3. These sentences come from external sources and may not be accurate. Los Esfingolípidos predominan en la vaina de mielina de las fibras nerviosas. The myelin sheath around an axon is interrupted at regular intervals known as the nodes of Ranvier. See more. Myelin, however, is … Sentence Examples. Context sentences for "myelin" in Portuguese These sentences come from external sources and may not be accurate. And wide gaps appeared between axon and, 13. Found inside – Page 25... but not the myelin sheaths, unlike the staining with the X-Gal substrate. ... but no precipitate could be detected in the myelin sheath (see Fig. Found inside – Page 90Keywords: Diabetes, myelin sheath 16 The answer is E: Schwann cell. Schwann cells are neuro- glial cells that support peripheral nerves. Was he ever brought in to see a neurologist? 1).Each myelin-generating cell furnishes myelin for only one segment of any given axon. The injured axon was one of the longest nerve fibers in the woman’s body, reaching all the way down her spinal cord. Results Bad protein was positively expressed in the normal optic nerve, 15. Found inside – Page 179As can be seen from this electron micrograph, most of the axons in this figure have verythin myelin sheaths in reference to axon diameter. Found inside – Page 12The myelin sheath is made of different complexes containing proteins and lipids such as myelin basic protein (MBP), myelin oligodendrocyte glycoprotein ... THEN ONE DAY his … The covering of myelin found around the axons of certain nerve fibres, formed in the peripheral nervous system by Schwann cells and in the central nervous system by oligodendrocytes. Found inside – Page 26A B C Myelin sheath, myelination, and unmyelinated axons. Schematics based on electron microscopic observations. A: Cell body with proximal parts of the ... Brain biopsy revealed severe damage to the. Found inside – Page 51Richard H. Quarles Wendy B. Macklin †Pierre Morell THE MYELIN SHEATH 51 Myelin facilitates conduction 51 Myelin has a characteristic ultrastructure 52 ... All extant members of the Gnathostomata, from fish to humans, have a myelin sheath on the axon of their nerve cells. The insulating envelope of myelin that surrounds the core of a nerve fiber or axon and that facilitates the transmission of nerve impulses, formed from the cell membrane of the Schwann cell in the peripheral nervous system and from oligodendroglia cells. Damage to the myelin sheath causes neurological disease, as in multiple sclerosis. Sentencedict.com try its best to gather and make good sentences. Less commonly the problem lies in the insulating, Monogalactosylceramide is the largest single component of the, Tasaki is credited with discovering the insulating function of the, TGF-? The myelin sheath is a fatty insulating later that surrounds the nerve cells of jawed vertebrates, or gnathostomes. The encoded protein can phosphorylate myelin basic protein and undergoes autophosphorylation. Found inside – Page 122The myelin sheath: (1) helps structure saltatory conduction, and (2) increases the resistance and reduces the capacitance of the axonal membrane. The results came back from the neurologist. In contrast, each oligodendrocyte forms multiple sheaths (up to 30 or more) around different axons (Figure 1). Found inside – Page 1121 2.5 2.3 7.7 *Includes phosphatidylinositol MYELIN FORMATION The oligodendrocyte is the cell responsible for myelin sheath formation in the CNS (reviewed ... All nerve fibers of the peripheral nervous system, even unmyelinated ones, are ensheathed in Schwann cells. Found inside – Page 114Our findings of myelin sheaths on the surface of the bodies of periglomerular cells in the olfactory bulb and of granule cells in the cerebellum have shown that they are quite specific , not commonly encountered morphological structures ... CONCLUSION:The degree of denervation is a marker for rehabilitative diagnosis of FP, and is related to the destruction degree of, 18. Myelin is formed by Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS). Myelin sheath and myelin function are therefore the same, to increase the speed of nerve impulses. meaning. The amount of myelin in the body increases throughout development, from fetal development up until maturity, with the myelination in the prefrontal cortex being the last to complete in … Found inside – Page 243... 14 - 16 sentence stress, I75 speech production, 50 stress, 14-16 ... 66, 67 Myelin sheath, 119, 123 Sentences, 14-16 articulation tests, ISS, ... Found inside – Page 110The living axon is several times thicker than the myelin wall which encloses it. (Most fixatives have the fault of shrinking the axis cylinder to a thin thread.) 2. Myelin Sheath. The axon is surrounded by a tubular myelin sheath, ... Each Schwann cell forms a single myelin sheath around an axon. Myelin sheath in a sentence 1. Found inside – Page 60The segmented structure of the myelin sheath limits membrane depolarization to small areas of the axon at the nodes of Ranvier . (2) To destroy or remove the myelin sheath of a nerve fiber, as through disease. . Found inside – Page 28All the motor axons have lipid coverings surrounding the axis cylinders ; these are the myelin sheaths , and they 200 are derived from a type of satellite ... Result:The regenerated nerves of decimeter wave sides had more medullated fibers, larger mean axons diameters and thicker, 14. Results: After 2 and 4 weeks in the experimental group, a large amount of myelinated nerve fibers, Schwann cells were observed with light microscopy, and thickness of, 20. that protects nerves. Found inside – Page 121They form d(n) myelin sheath dround many vertebrate neurons. ... body optic nerve suspensory ligament COrneC. pupil vitreous humor Complete edch sentence. Found inside – Page 39However , in the CNS the myelin sheath is in direct contact with other myelin sheaths , the surfaces of other glial cells and neurons , or the extracellular ... Found inside – Page 34Chick Fai Tam. --- Figure 10. ABSORPTION SPECTRA OF MYELIN SHEATH FRAGMENTS The solid. Found inside – Page 17Primary damage of myelin sheaths may be followed by secondary degeneration of oligodendrocytes . b . Myelin and oligodendrocytes may be damaged ... The sheath protects these fibers, known as axons, a lot like the insulation around an electrical wire. Collins English Dictionary. la vaina de mielina (46) vaina de mielina (24) capa de mielina (9) vaina de la mielina (6) vainas de mielina (4) Sphingolipids predominate in the myelin sheath of nerve fibers. Found inside – Page 1096warrant considering the myelin sheath as a part of the respective neuron . The suggestion that the myelin is in its histogenesis closely related to the ... ⓘ This sentence is not a translation of the original sentence. 0. The result was the identification of certain bacterial and viral proteins that were confused with the myelin sheath proteins. 2. Used of a nerve fiber. All axons from the enteric nerve cells lack a myelin sheath. (0) The insulating envelope of myelin that surrounds the core of a nerve fiber or axon and facilitates the transmission of nerve impulses. bab.la is not responsible for their content. Examples of in a sentence Canadian mouse study shows hormone associated with pregnancy may reverse MS Carbon monoxide protects against paralysis in MS mice Less commonly the problem lies in the insulating myelin sheath. The myelin sheath is a greatly extended and modified plasma membrane wrapped around the nerve axon in a spiral fashion [].The myelin membranes originate from and are a part of the Schwann cells in the peripheral nervous system and the oligodendroglial cells in the central nervous system (see Chap. RESULTS: After trauma, some neurons displayed histopathologic changes of necrosis and apoptosis, axon, 22. Found inside – Page 724.2 Identifying Remyelination Remyelination is the process in which entirely new myelin sheaths are restored to demyelinated axons. The term myelin repair ... myelin sheath (nerve sheath) the sheath surrounding the axon of myelinated nerve cells, consisting of concentric layers of myelin formed in the peripheral nervous system by the plasma membrane of Schwann cells, and in the central nervous system by the plasma membrane of oligodendrocytes.It is interrupted at intervals along the length of the axon by gaps known as nodes of Ranvier. Found inside – Page 190... Q On 14 February 2005, Dolly was euthanized Q All of the above sentences are false Which one of the following is NOT correct about the myelin sheath? Lacking a myelin sheath. Sentence with the word myelopathy. myelinization: [ mi″ĕ-lin″ĭ-za´shun ] production of myelin around an axon. Found inside – Page 274The Myelin Sheath The axons of many multipolar neurons in both the central and peripheral nervous systems are coated with a protective layer called the ... Monogalactosylceramide is the largest single component of the myelin sheath of nerves. Myelin-sheath. Examples. Found inside – Page 470The sheath of the L. terrestris median giant fiber , in particular , contains a mix of tightly compacted membranes that resemble vertebrate myelin , and redundant loops formed where the sheath buckles and retains substantial quantities ... 14. The lipids are essentially the phospholipids of the glial cell membrane. ... which normally produce the insulating myelin sheath covering peripheral nerves . have also been observed to induce Oligodendrocyte ( myelin sheath … Found inside – Page 63Myelin. Sheath. LPC. Model. and. Delayed. Degeneration. of. Axons. Demyelination has been associated with the activation of To clarify the sequence of ... Learn how to pronounce Myelin sheath and use in a sentence. 2. Examples have not been reviewed. As Wikipedia points out:. that insulates nerve cells, which are essential to the functioning of the brain and central nervous system. An electrical charge traveled down the axon as a nerve signal. Conduct the pathological observation on area of, 10. Damage to the myelin sheath causes neurological disease, as in multiple sclerosis Collins English Dictionary . Found inside – Page 474.1 Activity-dependent myelination. Individual oligodendrocytes simultaneously myelinate different axons and preferentially form myelin sheaths around the ... Conclusions The myelin was progressive damage in morphine dependent rats, and histomorphologic changes of, 16. The myelin sheath on vertebrate axons is critical for neural impulse transmission, but whether electrically active axons are preferentially Myelinated by glial cells, and if so, whether axo-glial synapses are involved, are long-standing questions of significance to nervous system development, plasticity and … Found inside – Page 10MOG may also be a cell surface receptor that transduces signals from the external milieu to the inside of the oligodendrocyte or myelin sheath. The myelin sheath, produced by cells called oligodendrocytes, wraps around the axons of nerves and helps speed activity and insulate electrical conduction. Nodes of Ranvier are basically gaps formed between the myelin coating (sometimes called myelin sheath gaps), and are the only parts of axon that are uninsulated. Medullary sheath definition, a narrow zone made up of the innermost layer of woody tissue immediately surrounding the pith in plants. But one day I encountered a new neurologist, a woman. Myelin is a lipid-rich (fatty) substance formed in the central nervous system (CNS) by glial cells called oligodendrocytes, and in the peripheral nervous system (PNS) by Schwann cells.. Origin Late 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. The intertwining hydrocarbon chains of sphingomyelin serve to strengthen the myelin sheath. Copyright © HarperCollins Publishers. Conclusion: Myelinated nerve fiber positive area and, 8. Found inside – Page 439One Schwann cell forms a single myelin sheath but oligodendrocyte myelinates multiple segments of many axons. The presence of myelin increases the speed of ... It's difficult to find myelin sheath in a sentence. Use Schwannoma in a sentence, schwannoma meaning?, schwannoma definition, how to use schwannoma in a sentence, use schwannoma in a sentence with examples ... Every nerve in your body is protected by a layer of tissue called a sheath . Enclosed in a myelin sheath, the axon is responsible for … 0. Called also myelination . When the myelin sheath degenerates, as is common among multiple sclerosis sufferers, the nerve loses the ability to transmit impulses. Learn more about the word "myelin sheath", its origin, alternative forms, and usage from Wiktionary. physiology. Definition of myelin sheath. an insulating sheath, composed of myelin, around certain nerve fibres.
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