KIN 3515 Chapter : UNIT 1 Short Answer
15 Mar 2019
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Unit 1 test review: muscle cells cannot be much longer than this due to the relationship between length and elasticity. Capillaries are located between these muscle stories in order to provide an even amount of nutrients to the different parts of the muscle: why would you not want all muscle cells clumped together, capillaries feed muscle cells. If muscle cells are clumped together in one area, they will all be feeding off of the same capillary. Once the cell repolarizes, hyperpolarization or inhibition will occur in order to drop the membrane potential back to resting membrane potential, which is -70 mv. Chemical gates do not diffuse quickly through the body, so it is up to the electrical gates to complete the task. Repolarization cannot take place if the cell does not have atp to kick out the sodium. Ultimately, the myosin and actin remain stuck together and do not release, causing a cramp.
