Which of the following statements concerning the spleen is true?
A. Splenic arteries enter the organ at the periarterial sheath.
B. The spleen can act as a blood reservoir.
C. The white pulp is associated with the venous supply.
D. The red pulp has trabeculae.
E. Humans can not survive without a spleen.
B
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In the heart, the interatrial and interventricular septa
A. prevent blood exchange between the atria and ventricles. B. allow blood to flow in only one direction between the atria and ventricles. C. act as the pacemaker of the heart. D. are the gatekeepers for the pulmonary and systemic circulatory systems.
Eccrine sweat glands
A. respond primarily to emotional stress. B. are most common in the armpits and groin. C. usually are associated with hair follicles. D. respond primarily to elevated body temperature.
Describe a synapse
A) A synapse is the connection between the dendrites and the cell body. B) A synapse is where the axon joins the cell body. C) A synapse is where multiple dendrites join an axon. D) A synapse is where one neuron communicates with another cell. E) A synapse is where the neuronal organelles are housed.
Define oxygen debt (excess postexercise oxygen consumption)
A) Oxygen debt is the decrease in oxygen during active aerobic respiration. B) Oxygen debt is the accumulation of oxygen in tissues during anaerobic respiration. C) Oxygen debt is the sum total of oxygen molecules used during cellular metabolism. D) Oxygen debt is the amount of oxygen intake required to produce the ATP needed to restore the body after strenuous activity. E) Oxygen debt is the amount of oxygen that must be returned to the lungs following strenuous exercise.