The motor end plate is
A) a folded area of muscle cell membrane with ACh receptors clustered at the top of each fold.
B) the same as the neuromuscular junction.
C) the same as the synaptic cleft.
D) formed by the membrane of enlarged axon terminals, or boutons, that lie on the surface of skeletal muscle cells.
E) a special fibrous matrix whose collagen fibers hold the axon terminal in proper position.
Answer: A