CH 4.3 Key Terms

Question 1

cerebrovascular accident

Answer 1

result of interrupted blood flow to the brain resulting from either a blood clot or a ruptured artery

Question 2

closed head injury

Answer 2

a result of a sharp blow to the head that does not puncture the brain CNS. See Central nervous system

Question 3

collateral sprouts

Answer 3

newly formed branches of an axon

Question 4

deafferented

Answer 4

to remove or disable the sensory nerves from a body part

Question 5

denervation supersensitivity

Answer 5

(receptor supersensitivity) increased sensitivity to neurotransmitters by a postsynaptic neuron after loss of input

Question 6

diaschisis

Answer 6

decreased activity of surviving brain neurons after damage to other neurons

Question 7

hemorrhage

Answer 7

type of stroke resulting from a ruptured artery

Question 8

edema

Answer 8

accumulation of fluid EEG. See Electroencephalograph

Question 9

phantom limb

Answer 9

a continuing sensation of an amputated body part

Question 10

ischemia

Answer 10

type of stroke resulting from a blood clot or other obstruction in an artery

Question 11

stroke

Answer 11

a temporary loss of normal blood flow to a brain area

Question 12

tissue plasminogen activator (tPA)

Answer 12

drug that breaks up blood clots TMS. See Transcranial magnetic stimulation