Which of the choices below is NOT a heart valve?
A) semilunar
B) mitral
C) tricuspid
D) perilunar
D) perilunar
Correct. There is no perilunar valve. All of the other answers are heart valves.
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Benzodiazepine drugs bind to several different receptors in the brain to provide sedation and also to decrease muscle tension that comes with anxiety
Indicate whether the statement is true or false.
Susan wishes to improve her abdominal and arm muscular endurance. The best way to do this is to
A. do abdominal curls and pushups. B. stretch before and after workouts. C. perform aerobic dance with hand weights. D. reduce her body fat.
When several games are going on at the same time, in order to assure continuity, what should be done?
A. share a common endline B. mark the boundaries clearly and provide ample space between games C. have one inside and one outside D. one group sits while other is playing
?Your text describes experimental research with rats and monkeys that focuses on the effects of stress on the developing brain. What do these studies suggest?
A. ?Excess cortisol may cause shrinkage of the amygdala, a brain structure required for the formation of certain kinds of memory. B. ?The most significant impact of stress on the developing brain takes place in utero. C. ?The young of rats and monkeys are less resilient to stress than human infants. D. ?A well-defined period of early postnatal development may be an important determinant of the capacity to handle stress throughout life. E. ?Periods of eustress during the first year of life can enhance brain growth.