Question

which of the following is not characteristic of smooth muscle? smooth muscle cells are uninucleate. neurons that innervate smooth muscles are under involuntary control. the striations are due to the orderly arrangement of actin and myosin. smooth muscles do not contain sarcomeres. the thin filaments of smooth muscle fibers are attached to dense bodies.

Explanation:

Smooth muscle lacks striations. Striations in muscle are characteristic of skeletal and cardiac muscle, due to the orderly arrangement of actin and myosin in sarcomeres. Smooth muscle does not have sarcomeres in the same organized way as these other muscle types. Smooth muscle cells are uninucleate, innervated by involuntary - control neurons, lack sarcomeres, and have thin filaments attached to dense bodies.

Answer:

The striations are due to the orderly arrangement of actin and myosin.