SHS 485: Exam #1

Question 1

Roles of a Glia Cell

Answer 1

• contains the myelin sheath
• blood brain barrier
• removes debris and excess neurochemicals
• structural support for neurons
• critical role in brain development

Question 2

The anatomy of a Neuron

Answer 2

• cell body (soma)
• dendrites
• axon

Question 3

Neuron Physiology

Answer 3

neurons perform computations and transform information before sending it on

Question 4

Input component of a neuron

Answer 4

dendrites

Question 5

the integration component of a neuron

Answer 5

axon hillock

Question 6

transmission component of a neuron

Answer 6

axon

Question 7

output component of a neuron

Answer 7

synapses

Question 8

Dorsal/Ventral

Answer 8

Superior/inferior
top and bottom

Question 9

rostral/caudal

Answer 9

anterior/posterior
front and back

Question 10

lateral/medial

Answer 10

outward/inward

Question 11

contralateral/ispsilateral

Answer 11

opposite side/same side

Question 12

proximal/distal

Answer 12

closer to/farther from

Question 13

Central Nervous system is made up of

Answer 13

the brain and spinal cord

Question 14

Spinal cord Nerve fibers classes

Answer 14

1. Sensory ascending fibers (dorsal)
2. motor descending fibers (ventral)

Question 15

Spinal cord is made up of

Answer 15

• nerve fibers
• spinal reflexes
• gray and white matter

Question 16

Major parts of the brain

Answer 16

• brainstem
• cerebellum
• diencephalon
• cerebrum

Question 17

Brain Stem’s 3 main parts

Answer 17

• medulla
• pons
• midbrain

Question 18

Brain stem functions

Answer 18

• respiration
• heart rate
• sleep-wake cycles
• arousal