nervous

Question 1

central nervous system

Answer 1

brain and spinal cord

Question 2

peripheral nervous system

Answer 2

all nerves that branch off from brain and spine

-sends signals both directions

Question 3

afferent

Answer 3

picks up sensory stimuli

Question 4

efferent

Answer 4

motor- sends directions from brain to muscles and glands

Question 5

motor/efferent divisions

Answer 5

1. somatic- voluntary

2. autonomic-involuntary

Question 6

autonomic divisions

Answer 6

1. sympathetic- mobilizes action

2. parasympathetic- relaxes

Question 7

glial cell types

Answer 7

1. astocytes- blood support
2. microglial- immunity protect
3. ependymal cells- line cavaties/ spinal fluid
4. oligodendrocytes- wrap and insulate (myelin sheath)

Question 8

peripheral NS glial cell types

Answer 8

1. satellite cells-surround neuron cell bodies

2. schwann cells- insulate (myelin sheath)

Question 9

sensory neurons

Answer 9

afferent, transmit impulses from sensory receptors to CNS, mostly unipolar

Question 10

motor neurons

Answer 10

efferent, impulse moves from CNS to rest of body, mostly multipolar

Question 11

interneurons

Answer 11

association neurons in CNS, most abundant, impulse moves between sensory and motor, multipolar

Question 12

resting membrane potential

Answer 12

-70

Question 13

charge needed for action potential

Answer 13

-55

Question 14

depolarization charge

Answer 14

+40

Question 15

saltatory conduction

Answer 15

leaping with myelin sheath

Question 16

seratonin

Answer 16

mainly inhibitory, regulates mood, appetite, and sleep

Question 17

dopamine

Answer 17

influence emotion and attention, feel great

Question 18

norepinephrine

Answer 18

can be hormone (adrenals) or neurotransmiter

fight or flight response

Question 19

brocas area

Answer 19

produce and process language

Question 20

cerebellum

Answer 20

coordinates muscular activity

Question 21

midbrain

Answer 21

process sensory info

Question 22

frontal lobe

Answer 22

governs muscle movement, motor skills, and cognitive functions

Question 23

occipital lobe

Answer 23

process visual cues

Question 24

parietal lobe

Answer 24

prosess sensation of touch, pain, and pressure

Question 25

temporal lobe

Answer 25

auditory infor and language

Question 26

hippocampus

Answer 26

short term memory

Question 27

amygdala

Answer 27

sexual and social behavior

Question 28

thalamus

Answer 28

“information switchboard”

Question 29

nociceptors

Answer 29

pain

Question 30

acetylcholine (Ach)

Answer 30

neurotransmiter used in sympathetic nervous synapse communication (preganglionci)

Question 31

cranial nerve 1-3

“onward old orks”

Answer 31

1. olfactory
2. optic
3. oculomotor

Question 32

cranial nerve 4-6

“toward the argonath”

Answer 32

4. trochlear -single eye muscle
5. trigeminal- face and jaw
6. abducens- eye muscle

Question 33

cranial nerve 7-9

“for a great”

Answer 33

7. facial nerve- expressions
8. auditory
9. glossopharyngeal- tongue and pharynx

Question 34

cranial nerve 10-12

“villian, slay hobbits”

Answer 34

10. vagus- heart and digestive tract
11. spinal accessory- moving head and shoulders
12. hypoglossal- swallow, talk

Question 35

motor, sensory, both?

Answer 35

“some say marry money but my brother says big brains matter more”