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when stimulated by chemical signals, stretch, and other stimuli, muscle cells respond with electrical impulses
stimulation can occur locally, but the impulse travels in a wave of excitation over the entire cell
attached to one or more bones, has striations of light and dark bands in each cell, has multinucleate cells, and is usually voluntary;
(worm-like) are multinucleate due to their formation from multiple stem cells called myoblasts
Cytoplasm of a muscle cell with an abundance of glycogen (stored glucose polymer) and myoglobin (red pigment to store oxygen)
Plasma membrane of a muscle cell. This organelle can receive neurotransmitters from connected neurons and conduct an electrical impulse over its surface and into the interior of the cell
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