MCAT Biology Question 160: Answer and Explanation

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Test Information

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.

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