Question: The efferent pathway of the cardiovascular control center is the autonomic nervous system.

Answer Options:
True
False

Answer: True

Question: Compliance is inversely related to

Answer Options:
A. the effort required to stretch the lungs.
B. the elasticity of the lung tissue.
C. both of the above.
D. Neither of the above.

Answer: C. both of the above.

Question: Gastric juice consists of ______________.

Answer Options:
Water
Pepsin
Hydrochloric acid
Mucus
All of the above
Only a and c

Answer: All of the above

Question: Most CO2 is transported in the blood

Answer Options:
A. as bicarbonate.
B. bound to hemoglobin.
C. as carbon monoxide.
D. physically dissolved in plasma.

Answer: A. as bicarbonate.

Question: The primary cause of peptic ulcer disease is:

Answer Options:
Gastroesophageal Reflux Disease
Helicobacter pylori infection
Severe emotional stress
Streptococcus mutans infection
None of the above

Answer: Helicobacter pylori infection

Question: The greater the metabolic rate of a tissue, the higher the cellular Pco2 rises and the lower the cellular Po2 falls.

Answer Options:
True
False

Answer: True

Question: Sodium reabsorption in the nephron is stimulated by

Answer Options:
A. antidiuretic hormone (ADH).
B. angiotensin II.
C. renin.
D. aldosterone.

Answer: D. aldosterone. (indicated by the selection)

Question: Inspiration of atmospheric air occurs because

Answer Options:
A. the air pressure in the alveoli is greater than that of the atmosphere.
B. the air pressure in the atmosphere is less than that of the alveoli.
C. the volume of the thoracic cavity increases.
D. more than one of the above are true.

Answer: C. the volume of the thoracic cavity increases.

Question: Which of the following contain all of the typical cellular organelles?

Answer Options:
A. Red blood cells
B. Platelets
C. White blood cells
D. More than one of the above

Answer: C. White blood cells

Question: Resistance increases when

Answer Options:
Vessel radius decreases.
Smooth muscle in the wall of a vessel relaxes.
Vessel radius increases.
More than one of the above occur.

Answer: Vessel radius decreases.

Question: The ________ provides efferent output to the respiratory muscles which reflexly maintains ________ within normal limits via negative feedback.

Answer Options:
A. medulla oblongata; PO2
B. somatomotor cortex; PCO2
C. medulla oblongata; PCO2
D. somatomotor cortex and medulla oblongata; PCO2

Answer: C. medulla oblongata; PCO2

Question: Elastic recoil of the stretched arterial walls drives blood flow through the arteries during ventricular diastole.

Answer Options:
True
False

Answer: True

Question: What role does gut microbiota play in the function of the GI tract?

Answer Options:
Helps maintain gut barrier
Optimizes the immune function of the gut
Protects gut from opportunistic disease causing bacteria
All of the above
Only a and c

Answer: All of the above

Question: Amino acids are absorbed into intestinal mucosal cells through:

Answer Options:
a) Simple diffusion
b) Osmosis
c) Facilitated diffusion
d) Active transport

Answer: c) Facilitated diffusion

Question: Vasodilation of the afferent arteriole results in an _________ in glomerular capillary blood pressure (P_GC), which _________ the glomerular filtration rate (GFR) of a nephron.

Answer Options:
A. increase; decreases
B. increase; increases
C. decrease; decreases
D. decrease; increases

Answer: B. increase; increases (indicated by the selection)

Question: During which of the following would the intrapleural pressure be greater than atmospheric pressure?

Answer Options:
A. Passive expiration
B. Passive inspiration
C. Active inspiration
D. None of the above

Answer: D. None of the above