BIO NMDCAT Muscles

nmdcat.online July 28, 2026

During digestion, rhythmic contractions move food through the alimentary canal. These contractions are produced mainly by:

A. Skeletal muscle

B. Cardiac muscle

C. Smooth muscle

✓

D. Tendons

📝 Explanation

Correct: Smooth muscle in the walls of the digestive tract performs involuntary peristalsis. A: Skeletal muscle controls voluntary movement. B: Cardiac muscle is restricted to the heart. D: Tendons connect muscles to bones. Concept: Functional significance of smooth muscle.

📖 Additional Information

Skeletal muscle
Cardiac muscle
Smooth muscle
Tendons

Correct: Smooth muscle in the walls of the digestive tract performs involuntary peristalsis. A: Skeletal muscle controls voluntary movement. B: Cardiac muscle is restricted to the heart. D: Tendons connect muscles to bones. Concept: Functional significance of smooth muscle.

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