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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Generating and transmitting impulses is the primary function of nervous tissue, not connective tissue. Nervous tissue is responsible for carrying signals throughout the body.
B. Covering and lining body surfaces is the function of epithelial tissue, which forms the skin and the lining of organs, not connective tissue.
C. Contracting and bringing about movement is the function of muscle tissue, not connective tissue. Muscle tissue is responsible for contraction and body movement.
D. Connective tissue's main function is to bind other tissues together and provide structural support. It includes tissues such as bone, blood, cartilage, and tendons, all of which help support, protect, and connect other tissues and organs.
Correct Answer is B
Explanation
A. The parathyroid glands regulate calcium and phosphate levels in the blood through the release of parathyroid hormone (PTH), not testosterone.
B. The anterior pituitary gland regulates the release of testosterone through the secretion of luteinizing hormone (LH), which stimulates the testes to produce testosterone. This is the correct gland involved in testosterone regulation.
C. The posterior pituitary releases hormones like oxytocin and antidiuretic hormone (ADH), but it does not regulate testosterone production.
D. The thyroid gland is responsible for regulating metabolism through thyroid hormones (T3 and T4), not testosterone.
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