Explanation Smooth muscles in the GI tract are innervated by both parasympathetic and sympathetic nerves. Smooth muscles in the wall of the blood vessels and erector pili muscles in hair follicles are innervated only by sympathetic nerves. Muscles that act at the elbow joint and muscles enclosed by epimysium are skeletal muscles that are innervated by somatic motor nerves 2.0K viewsEneutron Info, 15:00
