Which Part of the Reflex Arc Is Activated by a Stimulus

question 17

Multiple Choice

Which part of the reflex arc is activated by a stimulus?

• A) efferent neuron
• B) afferent neuron
• C) receptor
• D) integrating center

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Definitions:

Gastroscopy

A diagnostic procedure that involves using a gastroscope to visually examine the interior of the stomach.

Colonoscopy

A medical procedure using a camera to examine the interior lining of the colon and rectum.

Proctoscopy

A medical procedure where a special instrument, called a proctoscope, is used to examine the anal cavity, rectum, or sigmoid colon.

Uterus

A major female hormone-responsive reproductive sex organ of most mammals, including humans, responsible for housing and nurturing the fetus.