Which of the following statements regarding tubular reabsorption is incorrect? Tubular reabsorption
a. refers to the movement of a substance from the tubular fluid to the peritubular capillary blood.
b. is important for the conservation of substances important to the body, such as Na+, Cl-, glucose, and amino acids.
c. can occur by active or passive transport mechanisms.
d. involves the process of transepithelial transport.
e. takes place only in the proximal tubule.
E
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The left renal vein, right renal vein, right suprarenal vein, and right gonadal vein merge directly into the
A. superior vena cava. B. great saphenous vein. C. inferior vena cava. D. common iliac vein. E. obturator vein.
Which of the following adrenergic neurotransmitter receptors plays the major role in heart activity?
A) alpha 1 B) beta 1 C) beta 2 D) beta 3
Each follicle contains an immature egg.
a. true b. false
As the result of an asthmatic attack,
A. ventilation exceeds the ability of blood to pick up oxygen. B. ventilation is inadequate to oxygenate blood. C. pulmonary blood flow is reduced while ventilation remains normal. D. the surface area available for gas exchange increases. E. bronchioles dilate.