What stimulus initiates the defecation reflex?
A) release of secretin and cholecystokinin (CCK) by the small intestine
B) pressure on the gastroesophageal sphincter
C) the stretch of the rectum
D) presence of acid in the stomach
Answer: C
Anatomy & Physiology
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The structural units of mature compact bone are called
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An example of a symphysis is the
A. elbow joint. B. temporomandibular joint. C. costovertebral joint. D. intervertebral joint. E. sacroiliac joint.
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Anatomy & Physiology