nervous system

Question 1

major functions of the nervous system

Answer 1

• receiving sensory input
• integrating information
• controlling muscles and glands
• maintaining homeostasis
• establishing and maintaining mental activity

Question 2

what type of neuron sends messages to the brain

Answer 2

sensory neurons or afferent

Question 3

what type of neuron takes messages away from the brain

Answer 3

motor neurons or efferent

Question 4

if divide nervous system into 2 by location, what are they called

Answer 4

PNS and CNS

Question 5

what is a group of cell bodies in the PNS called

Answer 5

ganglia

Question 6

what is an independent network of neurons in the PNS called

Answer 6

Plexis

Question 7

what is a sense of balance and coordination called

Answer 7

kinesthetic

Question 8

what is sense felt in the gut, like pain or fullness

Answer 8

visceral

Question 9

what do motor neurons control

Answer 9

muscles and glands

Question 10

what is the voluntary branch of the motor division called

Answer 10

somatic

Question 11

what is the involuntary branch of the motor division called

Answer 11

autonomic

Question 12

what division of the autonomic nervous system makes the heart go faster

Answer 12

sympathetic

Question 13

what division of the autonomic nervous system controls digestion

Answer 13

enteric

Question 14

how many layers are there in the meninges

Answer 14

3…
dura mater
arachnoid
pia mater

Question 15

outside layer of the meninges is called

Answer 15

dura mater

Question 16

what acts like a seatbelt in the meninges

Answer 16

dura folds

Question 17

what space is between the vertebrae and the meninges

Answer 17

epidural

Question 18

what is the middle layer of the meninges called

Answer 18

arachnoid

Question 19

what fluid lies above the middle layer

Answer 19

lymph

Question 20

what is the function of lymph fluid

Answer 20

reducing friction

Question 21

what is the fluid below the middle layer

Answer 21

cerebrospinal fluid

Question 22

what is the function of cerebrospinal fluid

Answer 22

shock absorption

Question 23

what is the bottom layer of the meninges

Answer 23

pia mater

Question 24

what is the largest section of the brain called

Answer 24

cerebrum

Question 25

what is the deep middle part of the brain called

Answer 25

diencephalon

Question 26

what part of the brain connects the spinal cord and the cerebrum

Answer 26

brain stem

Question 27

what part of the brain influences mood

Answer 27

thalamus

Question 28

what part of the brain controls homeostasis

Answer 28

hypothalamus

Question 29

what part of the brain do we have intellectual functions

Answer 29

cerebrum

Question 30

what part of the brain do we control heart rate and breathing

Answer 30

medulla oblongata

Question 31

what part of the brain helps us learn motor skills

Answer 31

cerebellum

Question 32

what part of the neuron holds the nucleus

Answer 32

cell body

Question 33

what part of the neuron holds the nucleus

Answer 33

cell body

Question 34

what part of the neuron receives stimuli

Answer 34

dendrites

Question 35

what part of the neuron bridges a gap

Answer 35

axons

Question 36

what part of a neuron is at the end

Answer 36

synaptic knob

Question 37

what's faster, myelinated or unmyelinated

Answer 37

myelinated

Question 38

what type or shape is a sensory neuron

Answer 38

unipolar

Question 39

what neuroglial cell makes myelin in the PNS

Answer 39

schwann

Question 40

which neuroglial cell eats microorganisms

Answer 40

microglia

Question 41

which neuroglial cell creates the blood brain barrier

Answer 41

astrocyte

Question 42

what neuroglial makes cerebrospinal fluid

Answer 42

apendibal

Question 43

what ion is in high concentration outside the neuron

Answer 43

sodium

Question 44

what ion is in high concentration inside the neuron

Answer 44

potassium

Question 45

what gives a negative charge to the inside of the neuron

Answer 45

anion

Question 46

at rest how does Na and K move across the membrane

Answer 46

leak channels

Question 47

how does Na and K get put back where they belong

Answer 47

Na - K pump

Question 48

an excitatory stimulus will open what kind of channel

Answer 48

Na

Question 49

and inhibitory stimulus will open what kind of channel

Answer 49

K

Question 50

what is it called when the cell becomes less negative

Answer 50

depolarizing

Question 51

what is it called when the cell becomes more negative

Answer 51

hyperpolarizig

Question 52

what is it called when the cell becomes negative again after being positive

Answer 52

repolarizing

Question 53

the minimum change needed to send an action potential is called

Answer 53

threshold

Question 54

what is the very short period of time after an action potential at which you cannot send another action potential

Answer 54

refractory period

Question 55

what type or shape is a motor neuron

Answer 55

multipolar