The adrenal cortex produces only
A) polypeptides
B) steroids
C) amines
D) glycoproteins
Ans: B) steroids
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Which is an example of long-loop negative feedback?
A. Inhibition of corticotropin-releasing hormone by adrenocorticotropic hormone (ACTH) B. Inhibition of growth hormone-releasing hormone (GHRH) release by growth hormone (GH) C. Stimulation of thyroid-stimulating hormone (TSH) release by thyrotropin-releasing hormone (TRH) D. Inhibition of growth hormone-releasing hormone (GHRH) release by insulin-like growth factor-1 E. Stimulation of dopamine release by prolactin
In an isometric contraction the muscle develops tension but does not
a) lengthen. b) widen. c) does not expend energy. d) conduct electrical current. e) exhibit elasticity.
If the ventral root of a spinal nerve were cut, what would be the result in the tissue or region that nerve supplies?
A) a complete loss of sensation and movement B) loss of neither sensation nor movement but only of autonomic control C) complete loss of sensation D) a complete loss of voluntary movement
The visceral pericardium is also known as the ________ of the heart wall.
A. myocardium B. epicardium C. endocardium