NERVOUS SYSTEM TEST WOOT WOOT

Question 1

neuroglia cells

Answer 1

help maintain a healthy environment for the nervous system

Question 2

astrocyte

Answer 2

CNS/ main blood barrier/ structural support/ regulate fluid/ repair damaged neural tissue/ guide developing neurons

Question 3

oligodendrocytes

Answer 3

CNS/ structural support of neurons/ form myelin sheaths

Question 4

microglia

Answer 4

removes waste/pathogens/cellular debris/phagocytosis

Question 5

ependymal

Answer 5

assists in circulating/monitoring the cerebrospinal fluid (csf)

Question 6

satellite

Answer 6

regulates the exchange of nutrients/wastes between the cell bodies and the ecf

Question 7

schwann

Answer 7

forms the myelin sheets around the axons/ aid the regeneration of nerves

Question 8

autosympathetic

Answer 8

ANS

Question 9

motor (efferent) division

Answer 9

brain—->body/ CNS—–>PNS

Question 10

peripheral nervous system

Answer 10

body—–>brain/ cranial (12) + spinal (31 pairs)/ afferent

Question 11

central nervous system

Answer 11

brain + spinal chord

Question 12

somatic motor division

Answer 12

controls skeletal muscle

Question 13

axon

Answer 13

carries action potentials away from the soma

Question 14

soma

Answer 14

cell body

Question 15

neuron

Answer 15

has graded potentials and action potentials/ electrically excitable

Question 16

synaptic terminals

Answer 16

both ends of the synaptic bulb/ branch off the axon

Question 17

dendrites

Answer 17

carry graded potentials towards the soma

Question 18

axon hillock/ trigger zone

Answer 18

where the soma meets the axon/ where the graded potential has to get to in order to produce an action potential

Question 19

multipolar neurons

Answer 19

mostly in CNS

Question 20

interneurons

Answer 20

integration

Question 21

motor of efferent neurons

Answer 21

brain—>body

Question 22

pseudounipolar

Answer 22

most sensory

Question 23

bipolar neurons

Answer 23

taste hear see

Question 24

sensory/afferent neurons

Answer 24

body—–>brain

Question 25

graded potentials

Answer 25

amplitude dependent/ have mechanical, ligand, and voltage gated channels/ have to have a strong enough stimulus to cause an AP

Question 26

action potential

Answer 26

not amplitude dependent

Question 27

leakage channels

Answer 27

always open/ potassium and sodium/ diffusion/ nongated

Question 28

sodium/ potassium pumps

Answer 28

active transport/ help maintain concentration gradient of the cell

Question 29

voltage gated channels

Answer 29

respond to the overall voltage of the cell

Question 30

mechanically gated channels

Answer 30

respond to pressure or vibration