Free and bound acetylcholine in frog muscle.
نویسندگان
چکیده
منابع مشابه
Intracellular and surface acetylcholine receptors during the normal development of a frog skeletal muscle.
125I-alpha-bungarotoxin (125I-alpha BT) was used to measure the pool sizes of surface and intracellular acetylcholine receptors (AChRs) in the myotomal muscle of Xenopus laevis over a developmental period (stages 23-48; 1.03-7.5 d) which ranged from initial to mature stages of neuromuscular synaptogenesis. The surface pool increased progressively throughout development. The intracellular pool i...
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متن کاملSodium and Potassium in Frog Muscle*
The potassium content of muscle fibers depends, in part, upon the potassium concentration of the external medium (Fenn and Cobb, 1934). In tissues intact in the body, it has been shown that sodium enters the fibers as potassium leaves, either because of low potassium in the blood (Heppel, 1939, 1940) or because of activity or fatigue (Fenn, 1938). Such findings suggest that the normal accumulat...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1982
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1982.sp014448