Muscles which have bundles of muscle fibers arranged in rings around an opening ..... muscles ( think mouth-kisses)

MUSCLE ANATOMY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Muscles which have bundles of muscle fibers arranged in rings around an opening ____ muscles ( think mouth-kisses)

A	striated
B	penate
C	circular

Explanation:

Detailed explanation-1: -The fascicles of circular muscles, also called sphincters, are arranged around an opening in rings. When the muscle contracts, the size of the sphincter opening decreases. The orbicularis oris muscle is a circular muscle around the mouth under the lips.

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GENERAL ANATOMY

MUSCLE ANATOMY