Question Detail
Question
The primary structural difference between smooth and skeletal muscle is:
Correct Answer
Option D is the correct answer.
Detailed Explanation
Smooth and skeletal muscle differ in multiple structural aspects: presence of striations (skeletal is striated, smooth is not), number of nuclei (skeletal is multinucleated, smooth is uninucleate), and cell shape (skeletal is rod-like, smooth is spindle-shaped).
Hint
Consider all the ways these two muscle types differ microscopically.