Оценка 5,0 (1) It explains the structure and function of skeletal muscle fibers down to the molecular level. It discusses the sliding filament theory of muscle contraction and ... |
T-tubule action potentials cause release of calcium ions inside the muscle fiber which initiate the contraction. “Although it wasn't written in our slides it is ... |
The molecular motor to drive this shortening process is the action of the of the Myosin cross bridges, which cyclically bind or attach, rotate and detach from ... |
4 янв. 2020 г. · Muscle Contraction: • The process of a muscle contracting can be divided into 5 sections: • Excitation: • A nerve impulse (AP) arrives at the ... |
Z lines that form the boundary of the sarcomere move toward each other along the length of the muscle. =this causes the muscle to shorten (=contractibility). |
Isometric contraction: when the ms. does not shorten during contraction while tension is increasing. Isotonic contraction: when the ms. shortens or lengthens ... |
Skeletal muscles require stimulation from the nervous system in order to contract. Motor neurons are the cells that cause muscle fibers to contract. |
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