| / English Dictionary |
MUSCLE FIBER
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
An elongated contractile cell that forms the muscles of the body
Synonyms:
muscle cell; muscle fiber; muscle fibre
Classified under:
Hypernyms ("muscle fiber" is a kind of...):
fiber; fibre (any of several elongated, threadlike cells (especially a muscle fiber or a nerve fiber))
somatic cell; vegetative cell (any of the cells of a plant or animal except the reproductive cells; a cell that does not participate in the production of gametes)
Hyponyms (each of the following is a kind of "muscle fiber"):
striated muscle cell; striated muscle fiber (an elongated contractile cell in striated muscle tissue)
smooth muscle cell (cells of the smooth muscles)
Holonyms ("muscle fiber" is a part of...):
muscle; musculus (one of the contractile organs of the body)
Context examples:
This protein plays a role in the organization of the cytoskeleton of muscle fibers.
(Filamin-C, NCI Thesaurus)
In the body, fiber refers to tissue made of long threadlike cells, such as muscle fiber or nerve fiber.
(Dietary Fiber, NCI Dictionary)
Skeletal muscle fibers having low myofibrillar ATPase activity, low glycogen content, and high myoglobin content, high mitochondrial oxidative enzyme activities, and an intermediate mitochondrial content which produce a slow twitch and are fatigue-resistant.
(Muscle Fibers, Slow-Twitch, NLM, Medical Subject Headings)
Failure of the smooth muscle fibers of the gastrointestinal tract to relax at any one point of junction of one part with another.
(Achalasia, NCI Thesaurus)
A bundle of specialized heart muscle fibers that conducts impulses from the atrioventricular node to the ventricles.
(Atrioventricular Bundle, NCI Thesaurus)
A benign tumor, composed of mature adipocytes, that arises within skeletal muscle fibers.
(Intramuscular Lipoma, NCI Thesaurus)
Skeletal muscle fibers having high myofibrillar ATPase activity, high glycolytic enzyme activities, and an intermediate glycogen content which produce a fast twitch.
(Muscle Fibers, Fast-Twitch, NLM, Medical Subject Headings)
Involuntary contraction of the muscle fibers innervated by a motor unit.
(Fasciculation, NLM, Medical Subject Headings)
A muscle fiber that is able to hydrolyze ATP and transmit electrochemical signals rapidly.
(Fast-twitch Motor Unit, NCI Thesaurus)
Microscopically, it is characterized by disorganized areas, which are called cores, seen usually in the center of the muscle fibers.
(Central Core Disease, NCI Thesaurus)
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