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Endocrine System
Test Description: Anatomy and Physiology, Endocrine system Hormones
Instructions: Answer all questions to get your test result.
1) Which of the following is least descriptive of the hypothalamus?
A
synthesizes oxytocin and ADH
B
controls the secretion of the anterior pituitary gland
C
secretes ACTH, TSH, and gonadotropins
D
secretes releasing hormones
2) Insulin and glucagon
A
elevate blood glucose.
B
are secreted by the pancreas and are concerned with the regulation of blood glucose.
C
are secreted by the beta cells of the islets of Langerhans.
D
are secreted in response to declining plasma levels of glucose.
3) Steroids
A
are secreted by the pancreas.
B
include the glucocorticoids, mineralocorticoids, and androgens.
C
are secreted by the adrenal medulla.
D
stimulate the membranes of the target cells to produce the second chemical messenger, cAMP.
4) The adrenal medulla
A
is controlled primarily by ACTH.
B
is part of the “fight-or-flight” response.
C
secretes steroids.
D
secretes iodine-containing hormones.
5) Iodine-containing hormones
A
are secreted by the hypothalamus as releasing hormones.
B
are steroids.
C
regulate metabolic rate.
D
include thyroid-stimulating hormone (TSH).
6) Antidiuretic hormone (ADH) and oxytocin
A
are secreted by the islets of Langerhans.
B
stimulate the kidney to excrete Na+ and water.
C
are secreted by the neurohypophysis.
D
are mineralocorticoids.
7) Portal capillaries carry releasing hormones from the brain to the
A
neurohypophysis.
B
pancreas
C
posterior pituitary gland.
D
anterior pituitary gland.
8) Which of the following is the response to low plasma levels of calcium?
A
inhibition of the adenohypophyseal release of ACTH
B
secretion of PTH
C
secretion of calcitonin
D
secretion of the beta cells of the islets of Langerhans
9) What is the stimulus for the release of insulin?
A
high plasma levels of potassium
B
low blood volume
C
high plasma levels of glucose
D
low plasma levels of glucose
10) The adrenal cortex
A
is an extension of the sympathetic nervous system.
B
is the target gland of ACTH.
C
secretes ADH and oxytocin.
D
secretes catecholamines.
*select an answer for all questions
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