The vagus nerve carries parasympathetic impulses to the ________.
A. lacrimal glands
B. smooth muscle of the eyes
C. thyroid gland
D. thoracic and abdominal viscera
E. salivary glands
Answer: D
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The oropharynx is behind the mouth
Indicate whether the statement is true or false.
One type of skin cancer, which often results in a potentially fatal metastasis, arises in the pigment-producing cells called ________.
Fill in the blank(s) with the appropriate word(s).
Air enters the respiratory passageways when the pressure inside the lungs is lower than the:
blood pressure atmospheric pressure abdominal pressure arterial pressure all of the choices are correct
Match the eye structure with the appropriate description.A. Blood vessels enter and the optic nerve exits hereB. A small yellow spot near the center of the posterior retinaC. The portion of the retina with the greatest visual acuityD. A jelly-like substance in the posterior cavity of the eyeE. The fluid that fills the anterior cavity of the eyeFovea centralis
Fill in the blank(s) with the appropriate word(s).