Definition of Muscle fibre

1. Noun. An elongated contractile cell that forms the muscles of the body.

Exact synonyms: Muscle Cell, Muscle Fiber
Generic synonyms: Fiber, Fibre, Somatic Cell, Vegetative Cell
Group relationships: Muscle, Musculus
Specialized synonyms: Striated Muscle Cell, Striated Muscle Fiber, Smooth Muscle Cell

Definition of Muscle fibre

1. Noun. (alternative spelling of muscle fiber) ¹

¹ Source:

Medical Definition of Muscle fibre

1. Component of a skeletal muscle comprising a single syncytial cell that contains myofibrils. Any of the cells of skeletal or cardiac muscle tissue. Skeletal muscle fibres are cylindrical multinucleate cells containing contracting myofibrils, across which run transverse striations, enclosed in a sarcolemma. Cardiac muscle fibres contain one or sometimes two nuclei and myofibrils and are separated from one another by an intercalated disk; although striated, cardiac fibres branch to form an interlacing network. 2. fast-twitch muscles. Skeletal muscle fibres having high myofibrillar atpase activity, high glycolytic enzyme activities, and an intermediate glycogen content which produce a fast twitch. There are two types. Fast fatigable fibres, also called white fibres, have a low myoglobin content, and a small mitochondrial content, and fatigue rapidly due to their limited glycogen content and low capacity for oxidative metabolism. Fast fatigue-resistant fibres, also called red fibres, have a large mitochondrial content and a high myoglobin content, related to their resistance to fatigue. 3. slow-twitch muscles. Skeletal muscle fibres 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. (12 Dec 1998)

Muscle Fibre Pictures

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Lexicographical Neighbors of Muscle Fibre

muscle builder
muscle building
muscle bundle
muscle car
muscle cars
muscle cell
muscle contraction
muscle curve
muscle denervation
muscle dysmorphia
muscle epithelium
muscle fascicle
muscle fatigue
muscle fiber
muscle fibers
muscle fibre (current term)
muscle fibres
muscle hypertonia
muscle hypotonia
muscle in
muscle in on
muscle into
muscle man
muscle memory
muscle men
muscle neoplasms
muscle of antitragus
muscle of heart
muscle of notch of helix

Literary usage of Muscle fibre

Below you will find example usage of this term as found in modern and/or classical literature:

1. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"Put in a bald way, the main difference between a secreting cell and a muscle-cell, or elementary muscle-fibre as it is often called, is that in the former ..."

2. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1902)
"Destruction of the nerve fibre does not necessarily mean a permanent wasting of the muscle fibre, since a fresh connection may be established between the ..."

3. A Text Book of Physiology by Michael Foster (1893)
"From this plexus are given off a number of nerve-fibres, running singly, each of which joining a muscle fibre ends in an end-plate. ..."

4. A Text-book of physiology by Michael Foster (1891)
"From this plexus are given off a number of nerve fibres, running singly, each of which joining a muscle fibre ends in an end-plate. ..."

5. The Outline of Science: A Plain Story Simply Told by John Arthur Thomson (1922)
"A striped muscle-fibre is due to the great elongation of a cell, with multiplication of nuclei (N), or to a fusion of elongated cells. ..."

6. General Physiology of Muscles and Nerves by Isidor Rosenthal (1881)
"The muscle-fibre would accordingly consist of regularly arranged muscle- elements, the sequence of which, in the longitudinal direction, ..."

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