The element that is crucial to actual muscle contraction is

a. sodium.
b. potassium.
c. iron.
d. magnesium.
e. calcium.


E

Biology & Microbiology

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a. true b. false

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Which of the following does NOT occur during the latent period of muscle contraction?

a. Myosin heads bind to actin filaments. b. Myofibrils shorten. c. Muscle cell membrane initiates an electrical impulse which travels into the muscle cell. d. Calcium is released from the sarcoplasmic reticulum. e. all of these

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Hemolytic disease of the newborn can result from an

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