Question

which of the following does not apply to skeletal muscle?

multiple choice

it has intercalated discs.

it responds to acetylcholine.

it contracts rapidly.

it is attached to bones.

it is under voluntary control.

Explanation:

Analyze skeletal muscle characteristics

Using the Muscle Classifications, Muscle Attachment, and Muscle Contraction knowledge points

• Skeletal muscle is attached to bones, is under voluntary control, and can contract rapidly.
• It uses acetylcholine as its primary neurotransmitter at the neuromuscular junction.

Identify the exception

Using the Cardiac Muscle Anatomy and Intercalated Discs knowledge points

• Intercalated discs are specialized microscopic structures that join adjacent cardiac muscle cells.
• They are not found in skeletal muscle tissue.

Answer:

• (A) It has intercalated discs. (Correct answer)
• (B) It responds to acetylcholine.
• (C) It contracts rapidly.
• (D) It is attached to bones.
• (E) It is under voluntary control.