The External Anal Sphincter

question 191

Multiple Choice

The external anal sphincter:

• A)is the last part of the defecation reflex arc
• B)provides voluntary control of defecation
• C)both A and B
• D)both A and B and is made of smooth muscle

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Definitions:

Physiological Reaction

A bodily response to a stimulus, which could be anything from an emotional event to a physical touch.

Cognitive Coping

Strategies that involve the conscious effort to solve personal and interpersonal problems, and seeking to master, minimize, or tolerate stress or conflict.

Hypothalamus

A region of the brain responsible for the regulation of certain metabolic processes and other activities of the autonomic nervous system, including hunger and temperature control.

Adrenal Glands

Small glands located on top of each kidney which produce various hormones including adrenaline and cortisol, involved in response to stress.