Term
Organs that respond to a particular hormone are called:
a) target organs
b) integrated organs
c) responder organs
d) hormone attack organs
e) none of the above |
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Definition
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Term
A major feature of the "plasma membrane receptor" mechanism of hormonal action is:
a) action of cyclic AMP
b) increased lysosomal activity
c) requirement of a second messenger
d) all of the above
e) both a and c |
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Definition
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Term
A major feature of the "Activation of genes" mechanism of hormonal action is:
a) a second messenger is needed
b) a hormone-Golgi complex is used
c) the hormone enters the cell
d) lysosomal activity increases
e) all of the above |
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Definition
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Term
A hormone having an antidiuretic effect similar to that of antidiuretic hormone (ADH) is:
a) insulin
b) oxytocin
c) hGH
d) aldosterone
e) adrenocorticotropic hormone (ACTH) |
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Definition
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Term
The hypothalamus controls the adenohypophysis by direct involvement of:
a) nerve impulses
b) prostaglandins
c) cerebrocortical controlling factors (CCCFs)
d) regulating hormones
e) none of the above |
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Definition
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Term
Hormones convey regulatory information by:
a) endocrine signaling
b) paracrine signaling
c) autocrine signaling
d) synaptic signaling
e) all of the above |
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Definition
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Term
If calcium levels in the blood are too high, theyrocalcitonin (calcitonin) concentrations in the blood should:
a) increase, thereby inhibiting osteoclasts
b) increase, thereby stimulating osteoclasts
c) increase, but this change would not affect osteoclasts
d) decrease thereby inhibiting osteoclasts
e) decrease, thereby stimulating osteoclasts |
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Definition
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Term
In the negative feedback mechanism controlling thyroid hormone secretion, which is the nonregulatory hormone?
a) thyrotropin-releasing hormone (TRH)
b) thyroid-stimulating hormone (TSH)
c) thyroxine
d)all of the above are regulatory for thyroid hormone secretion |
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Definition
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Term
The control of parathyroid hormone is most accurately described as:
a) negative feedback controlled by the hypothalamus
b) positive feedback controlled by the pituitary
c) negative feedback involving the pituitary
d) negative feedback not involving the pituitary
e) both a and c |
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Definition
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Term
The renin-angiotensin-aldosterone system begins to function when renin is secreted by the:
a) adrenal cortex
b) adrenal medulla
c) pancreas
d) kidneys
e) none of the above |
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Definition
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Term
The effects of adrenal medullary hormones and the effects of sympathetic stimulation can be described as:
a) opposites in all respects
b) overlapping in some respects
c) opposites in some respects
d) variable depending on the sex involved
e) overlapping in most respects |
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Definition
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Term
Which best describes the respective effects of insulin and glucagon on blood glucose?
a) insulin raises blood glucose; glucagon lowers it
b) both raise blood glucose
c) insulin lowers blood glucose; glucagon raises it
d) both lower blood glucose
e) none of the above |
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Definition
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Term
THe releasing hormones produced in the hypothalamus travel to the anterior pituitary via the:
a) stem neurons
b) infundibular stem
c) hypophyseal stalk
d) hypophyseal portal system |
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Definition
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Term
Which anabolic hormone increases muscle protein synthesis?
a) T4
b) aldosterone
c) FSH
d) insulin |
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Definition
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Term
Aldosterone maintains electrolyte balance by:
a) retention of potassium
b) elimination of sodium
c) retention of both Na+ and K+
d) both a and b
e) none of the above |
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Definition
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