The hematocrit is a measure of the percentage of whole blood occupied by
a) WBCs.
b) platelets.
c) RBCs.
d) plasma.
e) plasma proteins.
c
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Which muscles aid in the act of swallowing?
A. Muscles of mastication B. Two of the choices are correct. C. Muscles that move the tongue D. Muscles of the pharynx E. Muscles of facial expression
Emotions influence autonomic reactions primarily through integration in the ________
A) lateral geniculate of the thalamus B) hypothalamus C) lateral horn of the spinal cord D) inferior colliculus
Which way would O2 and CO2 diffuse during internal respiration?
a) Both O2 and CO2 would diffuse into the systemic capillaries. b) O2 would diffuse into the systemic capillaries, and CO2 would diffuse into the cells. c) O2 would diffuse into the pulmonary capillaries and CO2 would diffuse into the alveoli. d) O2 would diffuse into the cells, and CO2 would diffuse into the systemic capillaries.
This is a sagittal section through the abdominopelvic cavity. What serous membrane does "B" represent?
A. visceral peritoneum (covers organs) B. mesentery C. parietal peritoneum (lines cavity) D. retroperitoneal organs E. peritoneal cavity