What extraembryonic membrane allows for the symmetrical development of the embryo?
A) Amnion
B) Allantois
C) Chorion
D) Yolk sac
Answer: A
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Proof that the ancient Egyptians were stricken with ________ was discovered by examining their skeletons
A) Parkinson's disease B) Anthrax C) Cancer D) Tuberculosis
A muscle directly involved in causing a segment to move is called what?
A. agonist B. antagonist C. neutralizer D. stabilizer
Angiotensin II
A. is formed from angiotensin I by the action of renin. B. acts on the collecting ducts to increase reabsorption of water. C. decreases blood pressure. D. is a potent vasodilator. E. stimulates aldosterone secretion.
A patient's history indicates damage to autonomic ganglia, and symptoms associated with digestive pain and dysfunction. The ganglia least likely to be damaged is ________.
A. celiac B. superior mesenteric C. sympathetic chain adjacent to T8 D. sympathetic chain adjacent to T1