The opsin in rods is called _________
Fill in the blank with correct word.
rhodopsin
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A male body builder starts taking injections of testosterone (an anabolic steroid) on a daily basis. After three weeks, which of the following would you expect to observe?
A) decreased levels of LH B) decreased levels of FSH C) increased sex drive D) decreased levels of GnRH E) All of the observations
Osteoblasts involved in bone growth in length come primarily from
A. osteocytes. B. chondrocytes. C. endothelium of blood vessels. D. connective tissue surrounding blood vessels of the endosteum. E. periosteum.
The type of adrenergic receptor found on the smooth muscle cells of blood vessels in the skin is
A. ?2 B. ?1 C. ?2 D. ?1
Blood from the posterior abdominal wall drains into the
A. hepatic portal vein. B. inferior vena cava. C. ascending lumbar veins. D. mesenteric vein. E. hepatic vein.