The atrioventricular valve between the left atrium and the left ventricle is known as the ____ valve
a. tricuspid
b. bicuspid
c. pulmonary
d. aortic
b
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The first indication of a high degree of erythropoiesis is when reticulocytes make up more than ____ percent of the circulating red blood cells
a. 0.3 b. 0.5 c. 1.0 d. 1.5 e. 1.9
Where is antidiuretic hormone (ADH, or vasopressin) made?
A) hypothalamus B) anterior pituitary C) thyroid gland D) posterior pituitary
What do the following hormones have in common: somatostatin, gonadotropin-releasing hormone, thyrotropin-releasing hormone, and prolactin-inhibiting hormone?
A) They are all secreted from the hypothalamus and target the anterior pituitary. B) They are all secreted from the anterior pituitary. C) They are all secreted from the posterior pituitary. D) They are all stored in the anterior pituitary.
The hypoblast layer of the blastodisc is made of
A. cuboidal cells and forms during the pre-embryonic period. B. cuboidal cells and forms during the fetal period. C. columnar cells and forms during the morula stage. D. columnar cells and forms during gastrulation.