The adult internal rectal sphincter is controlled by the
A)autonomic nervous system.
B)central nervous system.
C)peripheral nervous system.
D)lumbar spinal reflexes.
E)sacral spinal reflexes.

Name: The adult internal rectal sphincter is controlled by the A)autonomic nervous system. B)central nervous system. C)peripheral nervous system. D)lumbar spinal reflexes. E)sacral spinal reflexes.
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Question

Quizplus · Accepted Answer

The internal ring of smooth muscle of the anal canal is under involuntary autonomic control.

The Adult Internal Rectal Sphincter Is Controlled by the