Which Statement About Muscle Cells Is True

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.