Neuro terms

Question 1

gyrus

Answer 1

fold/bump on surface of brain

Question 2

sulcus

Answer 2

depression on surface of brain

Question 3

fissure

Answer 3

deep depression

Question 4

hemisphere

Answer 4

half of brain

Question 5

hemispheric specialization

Answer 5

one hemisphere is more dedicated to certain functions than the other

Question 6

neuron

Answer 6

nerve cell involved in transmitting impulses and carrying information

Question 7

Axon

Answer 7

transmits neuronal impulses away from cell body

Question 8

soma

Answer 8

cell body

Question 9

dendrite

Answer 9

receives neuronal impulses carrying them toward cell body

Question 10

neurotransmitter

Answer 10

neurochemical substance released into synaptic cleft upon excitation of neuron

Question 11

CNS

Answer 11

brain
spinal cord

Question 12

PNS

Answer 12

cranial and spinal nerves

Question 13

dematome

Answer 13

part of body innervated by given spinal nerve

Question 14

cranial/rostral

Answer 14

closer to head of body

Question 15

caudal

Answer 15

closer to tail of body
away from head

Question 16

dorsal

Answer 16

back or posterior surface

Question 17

dorsal root ganglion of spinal cord

Answer 17

cell bodies of afferent (sensory) spinal nerves

Question 18

ventral

Answer 18

anterior surface

Question 19

ventral root

Answer 19

bundle of efferent (motor) fibers originating from spinal ventral horns

Question 20

ipsilateral

Answer 20

same side

Question 21

contralateral

Answer 21

opposite side

Question 22

afferent

Answer 22

carrying towards central location
sensory nerve impulses

Question 23

efferent

Answer 23

move impulses away from CNS

Question 24

Cranial nerves

Answer 24

12 pairs of nerves in PNS innervating facial muscles, sensations of vision, smell, and touch