The functions of the nephron include all of the following EXCEPT _______.
A) tubular secretion
B) glomerular secretion
C) glomerular filtration
D) tubular reabsorption
Ans: B) glomerular secretion
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The hepatic portal vein does not receive blood from which of the following?
A. The splenic vein B. The superior mesenteric vein C. The pancreatic vein D. The hepatic veins E. The gastric veins
The skeleton of the heart consists of
A) bone within the myocardium. B) fibrous connective tissue encircling the atrioventricular orifices. C) bone within the interatrial septum. D) fibrous connective tissue in the endocardium.
Constriction of smooth muscle in the bronchioles
A. increases airflow out of the lungs. B. does not affect airflow. C. restricts the flow of air into the lungs. D. decreases ciliary action. E. occurs during periods of exercise.
Control of defecation involves voluntary relaxation of the
A. teniae coli. B. internal rectal sphincter. C. external anal sphincter. D. ilieocecal valve. E. oblique muscularis.