NS review

Question 1

a neurotransmitter released in response to the parasympathetic nervous system- puts you into a relaxed state

Answer 1

acetylcholine

Question 2

the brain stem

Answer 2

madulla oblorgata

Question 3

the portion of the brain responsible for maintaining homeostasis within the body

Answer 3

hypothalamus

Question 4

the dorsal root looks different then that ventral root due to the presence of an enlargement called the dorsal root _______

Answer 4

ganglion

Question 5

the void running down the centre of the spinal cord (2 words)

Answer 5

central canal

Question 6

the dorsal root conducts nerve impulses _______ the spinal cord

Answer 6

toward

Question 7

shorter branches of a neuron which receive nerve impulses

Answer 7

dendrites

Question 8

the _______ period occurs when sodium and potassium ions are being returned to their resting potential concentrations

Answer 8

refractory

Question 9

during resting potential, _________ is the most common ion inside the cell

Answer 9

potassium

Question 10

synaptic _______ contain the neurotransmitters within the axon ends

Answer 10

vesicles

Question 11

during resting potential, ________ is the most common on the outside of the cell

Answer 11

sodium

Question 12

the ventral root conducts nerve impulses _____ from the spinal cord

Answer 12

away

Question 13

another word for “sensory” neuron

Answer 13

afferent

Question 14

nerves are bundles of individual cells called ______

Answer 14

neurons

Question 15

one component of CNS

Answer 15

brain

Question 16

the coated portions of the axon are called __________ cells

Answer 16

schwann

Question 17

another word for “motor” neuron

Answer 17

efferent

Question 18

the voltage inside a neuron at resting potential is approximately -

Answer 18

70

Question 19

 axon _________ are at the end of the axon

Answer 19

 terminals

Question 20

The three protective membranes around the spinal cord

Answer 20

meninges

Question 21

The space between the axon ends of one nerve cell and the dendrites of a neighbouring cell

Answer 21

synapse

Question 22

The portion of the nervous system which produces the “fight or flight” response

Answer 22

sympathetic

Question 23

the nodes of ______ are breaks between myelinated sections of the axon

Answer 23

ranvier

Question 24

The portion of the cerebrum responsible for thinking

Answer 24

frontal

Question 25

The portion of the cerebrum responsible for vision

Answer 25

occipital

Question 26

A chemical that is released to transmit a nerve impulse from one nerve cell to the next

Answer 26

neurotransmitter

Question 27

The portion of the nervous system which is “involuntary “ (not under the conscious control)

Answer 27

autonomic

Question 28

after an action potential, sodium and potassium return to their resting potential state by the process of ________ (2 words)

Answer 28

active transport

Question 29

The central part of the neuron, where most activities related to the maintenance of the cell occur

Answer 29

cell body

Question 30

___________ transmitters make the postsynaptic membrane more permeable to Na+ and therefore more likely to produce an action potential

Answer 30

excitatory

Question 31

The stage of action potential where sodium ions begin to move into the cell

Answer 31

depolarization

Question 32

A neurotransmitter released by the sympathetic nervous system to induce the fight or flight response

Answer 32

noradrenalin

Question 33

_______ neurons carry nerve impulses AWAY from the CNS

Answer 33

motor

Question 34

A type of neuron found only in the CNS

Answer 34

interneurons

Question 35

The portion of the cerebrum responsible for understanding speech

Answer 35

temporal

Question 36

The portion of the nervous system which puts you into a more relaxed

Answer 36

parasympathetic

Question 37

The stage of action potential of where potassium ions begin to move out of the cell

Answer 37

Repolarization

Question 38

The name given to the “nerve impulse” that passes along a neuron (2 words)

Answer 38

action potential

Question 39

the ________ nervous system contains all the nerves that effect the skeletal muscle

Answer 39

somatic

Question 40

portion of the nervous system that is not the CNN

Answer 40

 PNS

Question 41

The portion of the brain that receives all information from the senses (except for smell) and decides where to direct it

Answer 41

thalamus

Question 42

an involuntary response which bypasses the brain

Answer 42

 reflex

Question 43

A substance which coats the axons of the nerve cells

Answer 43

myelin

Question 44

The part of the brain responsible for conscious thought

Answer 44

cerebrum

Question 45

The “master glands”

Answer 45

pituitary

Question 46

___________ transmitters occurs because of the myelinated nature of the act

Answer 46

saltatory

Question 47

these substances break down neurotransmitters in the synaptic cleft after their release

Answer 47

enzymes

Question 48

The part of the brain responsible for balance 

Answer 48

cerebellum

Question 49

A horizontal section that connects the right and left hemispheres of the brain

Answer 49

corpus callosum

Question 50

_________ transmitters make the postsynaptic membrane less permeable to an Na+ and therefore less likely to produce an action potential

Answer 50

inhibitory

Question 51

a component of the CNS

Answer 51

spinal cord

Question 52

The lobe of the cerebrum responsible for hearing and smelling

Answer 52

temporal

Question 53

______ matter in the spinal cord contains mostly cell bodies

Answer 53

grey

Question 54

________ matter in the spinal cord contains bundles of myelinated axons

Answer 54

white

Question 55

there are 31 pairs of ______ nerves

Answer 55

spinal

Question 56

The sodium/potassium pump requires energy molecule

Answer 56

ATP