MCAT Biology Question 160: Answer and Explanation
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Question: 160
10. Which type(s) of muscle has/have myogenic activity?
I. Cardiac muscle
II. Skeletal muscle
III. Smooth muscle
- A. I only
- B. II only
- C. III only
- D. I and III only
Correct Answer: D
Explanation:
Myogenic activity refers to the ability of a muscle to contract without nervous stimulation in response to other stimuli like stretching. Smooth and cardiac muscle both possess myogenic activity.