Coordinated muscle action via neurological and metabolic input is realized in various muscle fiber types. In general, these types include I, IIa, and IIx. The primary metabolic qualities of each type are slow, medium fast, and fast contraction speeds, respectively. Knowledge of fiber-type energy...
The plasma membrane of a skeletal muscle fiber is called thesarcolemma.The sarcolemma is the site of action potential conduction, which triggers muscle contraction. Within each muscle fiber aremyofibrils—long cylindrical structures that lie parallel to the muscle fiber. Myofibrils run the entire lengt...
The only open access journal in its field, Skeletal Muscle publishes novel, cutting-edge research and technological advancements that investigate the ...
运动生理学骨骼肌部分精华(Exercisephysiology,partoftheessenceofskeletalmuscle)ChengduInstituteofphysicaleducationteaching(two)Number,class,day,month,dayThemeskeletalmusclefunctionTeachingObjective:mastertheexcitabilityandexcitingconcept,mechanismofrestingpotentialandactionpotential,theconceptofthresholdpotential,theconduction...
The continual supply of ATP to the fundamental cellular processes that underpin skeletal muscle contraction during exercise is essential for sports performance in events lasting seconds to several hours. Because the muscle stores of ATP are small, metabo
Skeletal muscle voluntary contraction is controlled by the motor neurons, which interact with the muscle cells at the neuromuscular junction. The motor neurons are divided into upper and lower. The upper motor neurons have the cell body in the cerebral cortex, while the lower are located in the...
Role of inositol 1,4,5-trisphosphate in excitation-contraction coupling in skeletal muscle Treatment of myosin with DTNB causes a decrease in the calcium sensitivity of actomyosin, concurrently with the release of the DTNB light chains. The remov... P Volpe,FD Virgilio,T Pozzan,... 被引量:...
Despite the importance of this kinase in both the physiology and pathophysiology of the heart, relatively little is known about the role of GRK2 in skeletal muscle function and disease. In this study we generated a novel skeletal muscle-specific GRK2 knock-out (KO) mouse (MLC-Cre:GRK2fl/...
It is concluded that dantrolene sodium has no effect on the electrical excitability of the muscle and uncouples excitation-contraction mechanisms.关键词: Dantrolene Sodium Excitation-Contraction Uncoupling Action Potentials Membrane Capacitance Skeletal Muscle ...
Clinical & Experimental Pharmacology & PhysiologyLamb GD. Excitation-contraction coupling in skeletal muscle: com- parisons with cardiac muscle. Clin. Exp. Pharmacol. Physiol., 27, 216-224 (2000).Lamb GD (2000) Excitation-contraction coupling in skeletal muscle: comparisons with cardiac muscle. ...