Which plexus is NOT served by the vagus nerve?
A) brachial plexus
B) pulmonary plexus
C) esophageal plexus
D) cardiac plexus
Answer: A
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What anatomical feature of the stomach allows the organ to form chyme?
A) the muscular pyloric sphincter contracts B) the rugae allows the lumen to expand C) the wide body gives ample space D) the 3 muscular layers allows mixing and churning E) the long greater curvature produces an angle creating a pouch
The heart indents into the ________ of the left lung.
A. cardiac impression B. hilum C. apex D. oblique fissure E. base
What effect does a ?2 agonist have on the diameter of respiratory passages?
A) The diameter of the respiratory passageways will decrease. B) The diameter of the respiratory passageways will increase. C) The drug will have no effect on passageway diameter. D) The diameter of the respiratory passageways will decrease first, and then increase.
What is the structure that is responsible for secreting the hormone melatonin?
A) pineal gland B) cingulate gyrus C) mammillary body D) medulla oblongata