The ________ separate(s) the two atria
A) interventricular septum
B) interatrial septum
C) moderator band
D) foramen ovale
E) atrioventricular valves
Answer: B
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Why is the hand region of the homunculus on the precentral gyrus so large?
A. We have very sensitive fingertips. B. Our arms require a lot of muscle control. C. We have very mobile wrists. D. We have a lot of motor units associated with finger movement. E. The hand is a proportionally large part of the body.
What is the term for muscles that have opposite actions?
A. Synergists B. Antagonists C. Fixators D. Prime movers
Which of the following would be a result of an increase in systemic blood pressure?
A. Afferent arterioles constrict B. Efferent arterioles constrict C. Afferent arterioles dilate D. Peritubular capillaries dilate
The tall slender body shape that helps to dissipate heat in people native to equatorial regions is an example of
A. an adaptation. B. acclimatization. C. set point resetting. D. homeostasis. E. phase shift.