Please provide a brief overview of how muscles contract with vocabulary and definitions.© BrainMass Inc. brainmass.com December 15, 2020, 9:10 pm ad1c9bdddf
Problem: Please provide a brief overview of how muscles contract with vocabulary and definitions.
Solution: The contraction of a skeletal muscle occurs as follows:
1. Skeletal muscles contract only when stimulated by a motor neuron. The neurotransmitter acetylcholine is released from the synapse and diffuses across the synaptic cleft to receptor proteins on the plasma membrane of the muscle.
2. As a result, the muscle fiber becomes depolarized and an action potential is propagated deep into the muscle fibers.
3. The action potential triggers Ca2+ ions to be pumped from the ...
This solution examines the process of muscle contraction, providing a step-by-step explantion. It includes vocabulary (including acetylcholine, action potential, actin, cytosol, myosin, sacroplasmic reticulum, tropomyosin, and troponin) used in a biology survey class as well as definitions to aid understanding. The explanation is given in 376 words with one reference.