CNS

Question 1

Doral horn has what type of fibers

Answer 1

sensory affarent

Question 2

Ventral horn has what type of fibers

Answer 2

motor efferent

Question 3

Interolateral horn has what type of fibers

Answer 3

autonomic

Question 4

Alar plates have what type of n?

Answer 4

sensory affarent

Question 5

Basilar plates have what type of n?

Answer 5

motor efferent

Question 6

What do A-alpha n fibers transmit?

Answer 6

proprioception

Question 7

What do A-beta n fibers transmit?

Answer 7

touch

Question 8

What do A-delta n fibers transmit?

Answer 8

pain, temp (1st pain)

Question 9

What do C n. fibers transmit?

Answer 9

pain, temp, itch (2nd pain)

Question 10

What n. fibers are unmyelinated?

Answer 10

C

Question 11

SNS fiber characteristics

Answer 11

short pre

long post

Question 12

PNS fiber characteristics

Answer 12

long pre

short post

Question 13

What to alpha-1 receptors innervate?

Answer 13

VSM = vasoconstriction

Question 14

What do alpha-2 receptors innervate?

Answer 14

presynaptic n. terminals 
platelets
fat cells 
GI tract 
= inhibition

Question 15

What do Beta-1 receptors innervate?

Answer 15

heart (inc HR and contractility)

Question 16

What do Beta-2 receptors innervate?

Answer 16

skeletal and bronchial smooth m (dilation)

Question 17

NE stimulates what receptors

Answer 17

alpha

Question 18

Epi stimulates what receptors

Answer 18

alpha and beta

Question 19

Spinothalamic tract fxn

Answer 19

lateral: pain, temp, light anterior: touch

Question 20

Dorsal (post) column fxn:

Answer 20

light touch
vibration
pressure
proprioception

Question 21

cortiospinal (pyramidal) tract fxn:

Answer 21

fine skilled skeletal m. movement

Question 22

Extrapyramidal tract fxn

Answer 22

gross motor movement, posture, balance

Question 23

What spinal tract controls neck m.

Answer 23

tectospinal

Question 24

Spinal cord lesions cause what type of dysfunction?

Answer 24

ipsilateral motor loss (corticospinal)

contralateral pain and temp loss (spinothalamic)

Question 25

What’s the most abundant excitatory NT?

Answer 25

Glutamate

Question 26

What’s the most abundant inhibitory NT?

Answer 26

GABA

Question 27

olgiodendrocyte cells

Answer 27

myelination

Question 28

epindymal cells

Answer 28

line ventricular system

Question 29

microglial cells

Answer 29

phagocytic cells of CNS

Question 30

Babinski sign indicates damage to what neural structure?

Answer 30

upper motor neuron