If the partial depolarization arriving at an axon is sufficiently large, typically ___ or more, it can cause normally closed sodium ion channels to open
A) 5mV
B) 40mV
C) 30mV
D) 10mV
D
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Why is methadone considered a safer drug than heroin?
a. Methadone does not enter the brain b. Methadone can be taken as a pill. c. Methadone can be purchased inexpensively. d. Methadone cannot become addictive.
The brain system associated with anxiety is called ____
a. behavioral activation system b. behavioral inhibition system c. behavioral formation system d. hypothalamic system
Damage to the cerebellum would most likely result in
a. heart stoppage or respiratory failure. b. a loss of hearing ability. c. a loss of muscular coordination. d. having blind spots in one's vision.
Historically, when women have needed a relationship for financial security, sex was regarded as a(n) ________
a. asset to be rationed to achieve a goal. b. pleasurable activity to be enjoyed. c. n act to be "gotten through" quickly. d. art to cultivate, like the art of cooking.