Which of these statements regarding vasectomies is FALSE?
a. it can be done in a doctor's office under local anesthesia in about 20 to 30 minutes
b. a man is sterile as soon as the operation is done
c. a vasectomy does not interfere with the production of sperm in the testicles
d. after a vasectomy, a man can still experience ejaculations
b
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Bobby's parents used extinction to get him to stop crying when he had to eat vegetables, by making him eat vegetables despite his crying. One night Bobby has a babysitter, and she does not make him eat his vegetables when he starts crying. As a result, Bobby's behavior of crying when told to eat vegetables:
a. has not been reinforced b. has been intermittently reinforced c. has been continuously reinforced d. A and B
The __________ minimize(s) leakage of electrical current traveling along the axon
a. nodes of Ranvier c. myelin sheath b. synaptic cleft d. soma
Which type of glia is responsible for forming myelin in the peripheral nervous system?
a. astrocytes b. oligodendrocytes c. Schwann cells d. microglia
The difference between encephalitis and meningitis is that a. encephalitis can be life threatening, but meningitis cannot
b. meningitis can be life threatening, but encephalitis cannot. c. encephalitis is caused by bacteria, but meningitis is caused by a virus. d. encephalitis is an infection of the brain itself, whereas meningitis is an infection of the lining of the brain and/or spinal cord.