Which Statement About Muscle Cells Is True

question 53

Multiple Choice

Which statement about muscle cells is true?

• A) The plasma membrane of a muscle cell does not conduct action potentials.
• B) A motor unit is a motor neuron and one of the muscle fibers with which it synapses.
• C) A neuromuscular junction is the area of contact between the axon terminal of a motor neuron and a T tubule of a skeletal muscle cell.
• D) An action potential in a muscle fiber travels into the T tubules of the muscle cell.
• E) Each skeletal muscle has a single motor unit.

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