Which of the following is an appropriate description of the function of the renal afferent arteriole?
Facilitates reabsorption of glucose
Reabsorbs potassium and magnesium
Delivers blood supply to the nephron
Acts as a holding area for filtrate
The Correct Answer is C
A. The renal afferent arteriole does not play a role in reabsorbing glucose. Glucose reabsorption occurs in the proximal convoluted tubule of the nephron, not in the afferent arteriole.
B. The afferent arteriole does not reabsorb potassium and magnesium. These electrolytes are reabsorbed in specific segments of the nephron, such as the proximal convoluted tubule and the loop of Henle.
C. The renal afferent arteriole delivers blood to the nephron, specifically to the glomerulus, where filtration of blood occurs. This is its primary function in the kidney's filtration process.
D. The afferent arteriole does not act as a holding area for filtrate. Filtrate is formed in the glomerulus, and it then moves into the Bowman's capsule and through the nephron.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The ovaries are responsible for producing hormones such as estrogen and progesterone but do not directly produce lubrication during sexual excitement.
B. The cervix produces mucus that changes in consistency throughout the menstrual cycle but does not play a significant role in lubrication during sexual activity.
C. Skene's glands, located near the urethra, secrete fluid that is often compared to prostate fluid in males, but they do not play the primary role in vaginal lubrication during sexual excitement.
D. Bartholin's glands, located near the vaginal opening, secrete mucus that provides lubrication during sexual excitement, helping to reduce friction and enhance comfort during intercourse.
Correct Answer is D
Explanation
A. The transverse colon is where feces travels after the ascending colon, moving from right to left across the abdomen. Feces does not move directly from the cecum to the transverse colon.
B. The descending colon is the part of the colon that runs down the left side of the abdomen. Feces moves into this section after passing through the transverse colon, not directly after the cecum.
C. The sigmoid colon is the final section of the colon before the rectum. Feces travels here after the descending colon, not immediately after the cecum.
D. The ascending colon is the section of the colon that feces travels through immediately after the cecum. It moves upward on the right side of the abdomen before passing into the transverse colon.
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