Which part of the brain is responsible for producing and releasing antidiuretic hormone (ADH)?
Hypothalamus.
Pituitary gland (posterior lobe).
Pituitary gland (anterior lobe).
Pineal gland.
The Correct Answer is B
The posterior lobe of the pituitary gland, also known as the neurohypophysis, is responsible for producing and releasing antidiuretic hormone (ADH) in response to signals from the hypothalamus.
Incorrect choices:
a. This choice is incorrect. The hypothalamus produces ADH and releases it into the posterior pituitary for storage and release.
c. This choice is incorrect. The anterior lobe of the pituitary gland is responsible for producing and releasing other hormones, such as growth hormone and thyroid-stimulating hormone.
d. This choice is incorrect. The pineal gland is responsible for producing melatonin, a hormone that regulates sleep-wake cycles, and is not involved in ADH production.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
In diabetes insipidus, the hyposecretion of antidiuretic hormone (ADH) leads to decreased water reabsorption in the kidneys, resulting in increased urine output. The urine produced is dilute and lacks the normal concentration of solutes.
Incorrect choices:
a. This choice is incorrect. Urine output increases, but it becomes dilute, not concentrated.
c. This choice is incorrect. Urine output increases, and the urine becomes dilute, not concentrated.
d. This choice is incorrect. Urine output increases, but it becomes dilute, not concentrated.
Correct Answer is B
Explanation
Nephrogenic diabetes insipidus is characterized by a lack of response to ADH by the kidneys, resulting in decreased water reabsorption and increased urine output.
Incorrect choices:
a. This choice is incorrect. Central diabetes insipidus is characterized by inadequate production or release of ADH from the hypothalamus or pituitary gland.
c. This choice is incorrect. Gestational diabetes insipidus occurs during pregnancy and is rare.
d. This choice is incorrect. Type 1 diabetes insipidus is not a recognized classification of diabetes insipidus.
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