A famous tag-team wrestler has a famous "sleeper hold" that he uses on his opponents. Using only a single digit on each hand, he presses on his opponent's neck until his opponent passes out. What are the structures on which he is pressing and what is the effect?
A. Carotid chemoreceptors; blood pressure increases
B. Subclavian arteries; blood flow to brain is stopped
C. Vertebral arteries; blood flow to brain is increased
D. Baroreceptors in carotid sinus; peripheral vasodilation and decreased heart rate
E. Jugular vein; blood flow back to heart is decreased
Answer: D
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This figure shows the muscles of the posterior trunk. What muscle does number 2 indicate?
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