Antidiuretic hormone (ADH) targets the________
hypothalamus
pancreas
adrenal gland
kidneys
anterior pituitary
The Correct Answer is D
A. Hypothalamus: The hypothalamus produces ADH, but it is not the target of its action. The hormone acts on other organs to regulate water balance, not on the hypothalamus itself.
B. Pancreas: The pancreas is involved in insulin and glucagon secretion and does not respond to ADH. It is not a target organ for this hormone.
C. Adrenal gland: The adrenal gland secretes hormones like cortisol, aldosterone, and adrenaline, but ADH does not act directly on it.
D. Kidneys: ADH primarily targets the kidneys, specifically the collecting ducts, to increase water reabsorption. This action reduces urine volume and helps maintain body fluid balance and blood pressure.
E. Anterior pituitary: The anterior pituitary is not a target of ADH; it is regulated by hypothalamic hormones but does not respond to ADH in controlling water balance.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A pathogen is any microorganism-such as bacteria, viruses, fungi, or parasites-that can invade the body and cause disease. Pathogens have mechanisms to evade the immune system, reproduce within the host, and produce toxins or damage that result in illness.
Correct Answer is B
Explanation
A. 5:Hemoglobin molecules do not bind five oxygen molecules; this exceeds their structural capacity.
B. 4:Each hemoglobin molecule has four heme groups, and each heme can bind one oxygen molecule. Therefore, one hemoglobin molecule can carry a maximum of four oxygen molecules.
C. 2:Hemoglobin can carry more than two oxygen molecules; two would only represent half-saturation of the molecule.
D. 6:Six oxygen molecules exceed the binding capacity of hemoglobin and are not physiologically possible.
E. 3:Hemoglobin can bind three oxygen molecules, but this is not the maximum capacity. Four is the full complement when fully saturated.
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