Single-Unit Smooth Muscle

Multiple Choice

Single-unit smooth muscle

A) contains an abundance of gap junctions and forms functional syncytia.
B) is self-excitable.
C) is found in the walls of the digestive, reproductive, and urinary tracts and small blood vessels.
D) both contains an abundance of gap junctions and forms functional syncytia and is self-excitable.
E) all of these answers.