Insulin and glucagon:
Are secreted in response to decreasing blood glucose levels
Elevate blood glucose levels
Secreted by the beta cells of the islets of Langerhans
Are secreted by the pancreas and are concerned with the regulation of blood glucose
The Correct Answer is D
A. Are secreted in response to decreasing blood glucose levels:
Only glucagon is secreted when glucose is low; insulin is secreted when it is high.
B. Elevate blood glucose levels:
Only glucagon elevates blood glucose. Insulin lowers it.
C. Secreted by the beta cells of the islets of Langerhans:
Only insulin is secreted by beta cells. Glucagon is secreted by alpha cells.
D. Are secreted by the pancreas and are concerned with the regulation of blood glucose:
Both hormones are secreted by the pancreas and work together to regulate blood glucose levels- insulin lowers it, and glucagon raises it.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Urethra:
The urethra is the passageway for urine and semen but not where sperm matures.
B. Vas deferens:
The vas deferens transports mature sperm but does not play a role in maturation.
C. Ejaculatory ducts:
These ducts conduct sperm to the urethra but do not aid in maturation.
D. Epididymis:
The epididymis is the site where sperm mature and are stored.
Correct Answer is A
Explanation
A. Causes Na+ and water reabsorption:
Aldosterone increases sodium (and water) reabsorption in the kidneys, which raises blood volume and pressure.
B. Depletes blood volume:
Aldosterone helps increase blood volume.
C. Causes K+ reabsorption:
Aldosterone promotes potassium excretion, not reabsorption.
D. Cause Na+ excretion:
Aldosterone causes sodium retention, not excretion.
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