High levels of cortisol would normally provide negative feedback to the _______.
A) the posterior pituitary and the hypothalamus
B) the anterior pituitary and the hypothalamus
C) posterior pituitary
D) anterior pituitary
E) hypothalamus
Ans: B) the anterior pituitary and the hypothalamus
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Two methods of protein activation include ________ and ________.
Fill in the blank(s) with the appropriate word(s).
The following is a list of tissue layers of the digestive tract. What is the correct order from lumen to external surface?
(1) Muscularis externa (2) Muscularis mucosa (3) Serosa (4) Lamina propria (5) Submucosa A. 4, 2, 5, 1, 3 B. 3, 4, 5, 2, 1 C. 2, 5, 4, 1, 3 D. 4, 5, 2, 1, 3 E. 4, 2, 1, 5, 3
Puberty is initiated when a region of the brain begins secreting
A. luteinizing hormone. B. estrogen or testosterone. C. follicle-stimulating hormone. D. gonadotropin-releasing hormone. E. androgens.
The ejection fraction is ________.
A. the ratio of stroke volume to end diastolic volume B. the ratio of end diastolic volume to end systolic volume C. decreased by sympathetic agonists D. increased by parasympathetic agonists