Results 251 to 260 of about 1,130,859 (302)

Acetylcholine Receptors in Muscle Fibres

Nature, 1971
There are calculated to be approximately 109 acetylcholine receptors in a frog muscle fibre. This has important implications for theories concerning the nerve to muscle transmission mechanism.
R, Miledi, L T, Potter
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Laryngeal muscle fibre types

Acta Physiologica Scandinavica, 2005
Summary The internal laryngeal muscles have evolved to subserve the highly specialized functions of airways protection, respiration, and phonation. Their contractile properties, histochemistry, biochemical properties, myosin heavy chain (MyHC) expression and their regulation by nerves and hormones are reviewed and compared with limb ...
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Studies on muscle fibre splitting in skeletal muscle

Experientia, 1981
Autoradiographic, stereological and histological studies have been carried out to determine the origin of muscle fibre splitting which supposedly occurs during muscle hypertrophy. The results obtained clearly indicate that the supposedly ‘split fibres’ are a transient response probably derived from satellite cells and are not derived from pre-existing ...
G W, Atherton, N T, James, M, Mahon
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THE STRUCTURE OF THE STRIATED MUSCLE FIBRE

Biological Reviews, 1948
Summary1. The muscle fibre is regarded as a bundle of myofibrils, embedded in a viscous matrix, the sarcoplasm, the whole being surrounded by a delicate sheath, the sarcolemma.2. The sarcolemma is a thin, apparently structureless membrane. Preliminary study with the electron microscope suggests that it may be less than o‐i /u. thick.
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“Giant” muscle fibres in skeletal muscle of normal pigs

Journal of Comparative Pathology, 1986
Observations made during a growth and development study of the semitendinosus and trapezius muscles of 49 purebred Large White pigs between birth and 128 days of age revealed the presence of giant fibres. The occurrence, histochemical and ultrastructural properties of these giant fibres were investigated.
S E, Handel, N C, Stickland
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Muscle fibre type populations of human leg muscles

The Histochemical Journal, 1975
Four selected leg muscles (gastrocnemius, soleus, vastus lateralis and intermedius) from thirty-two humans were autopsied within 25 hr of death and examined histochemically. The results of histochemical myofibrillar adenosine triphosphatase activity demonstrated that the soleus and vastus intermedius muscles have a higher proportion of slow twitch ...
V R, Edgerton, J L, Smith, D R, Simpson
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Simulation of the spatial distribution of muscle fibres in human muscles

Computer Methods and Programs in Biomedicine, 1986
A composite muscle cross section model was simulated on a VAX 780 computer. The various motor unit territories in the cross section area were circular, partially overlapping each other. The radii of the territories of the motor units, their centres, and the number of muscle fibres in each motor unit were treated as random variables.
R, Shenhav, I, Gath
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Muscle-fibre architecture of the rat medial pterygoid muscle

Archives of Oral Biology, 1987
The detailed fibre architecture of the rat medial pterygoid muscle, including the courses and attachment points of muscle fibres, was investigated histologically in 10 micron thick serial sections in the horizontal, coronal and parasagittal planes.
H, Matsumoto, S, Katsura
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Nanostructured artificial-muscle fibres

Nature Nanotechnology, 2022
Shaoting Lin, Xuanhe Zhao
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Muscle Fibre Types in Mammalian Muscles

1985
Human muscle tissue appears macroscopically more or less alike, but in small mammals the muscles often differ in colour. Ranvier (1873) observed that red muscles of rabbits contracted slowly and that they consisted of fibres with much sarcoplasm and distinct longitudinal striations; the white muscles were fast and the histological picture of the fibres
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