(NS) Spinal cord and Peripheral Nerves

Question 1

Spinal cord functions

Answer 1

sensory pathway
motor pathway
Reflex center

Question 2

Spinal cord

Answer 2

the spinal cord is a continuous of the brain stem

Question 3

Sensory pathway

Answer 3

spinal cord provides pathways for sensory info. to travel to periphery to the brain

Question 4

Motor pathway

Answer 4

Spinal cord providing pathways for motor info. coming from the brain going to the periphery

Question 5

Reflex center

Answer 5

Spinal cord acts like a major reflex center

Question 6

the gray matter
( butterfly shape)

Answer 6

cell bodies and interneurons and synapses

Question 7

Projections of the gray matter
( Butterfly shape )

Answer 7

Dorsal horns
central canal
Ventral horns

Question 8

Dorsal Horns

Answer 8

posterior

Question 9

Ventral horns

Answer 9

anterior

Question 10

Central canal

Answer 10

a hole that extends the entire spinal cord

Question 11

The white matter

Answer 11

-matter of the spinal cord composed of myelinated and unmyelinated axons
-filled with ascending and descending tracts

Question 12

Ascending tracts

Answer 12

carry sensory tracts form periphery up the spinal cord to the brain

Question 13

Major Types of ascending tracts

Answer 13

The spinothalamic tract
Dorsal column
Spinocerebellar

Question 14

Descending tracts

Answer 14

carry info. from the brain down the spinal cord to the periphery

Question 15

Major types of Descending tracts

Answer 15

Pyramidal
extrapyramidal