nervous system

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

Medulla oblongata

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 the 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

Answer 5

Central canal

Question 6

Shorter branches of a neuron which receive nerve impulses

Answer 6

Dendrites

Question 7

The ______ period occurs when sodium and potassium ions are being returned to their resting potential concentrations

Answer 7

Refractory

Question 8

During resting potential, _____ is the most common ion inside of the cell

Answer 8

Potassium

Question 9

Synaptic _____ contain the neurotransmitters within the axon ends

Answer 9

Vesicles

Question 10

During resting potential, ______ is the most common ion outside of the cell

Answer 10

Sodium

Question 11

The ventral root conducts nerve impulses ______ from the spinal cord

Answer 11

Away

Question 12

Another word for “sensory” neuron

Answer 12

Afferent

Question 13

Nerves are bundles of individual cells called ______

Answer 13

Neurons

Question 14

One component of the CNS

Answer 14

Brain

Question 15

The coated portions of the axon are called _____ cells

Answer 15

Schwann

Question 16

Another word for “motor” neuron

Answer 16

Efferent

Question 17

The voltage inside a neuron at resting potential is approximately ______

Answer 17

-70 mV

Question 18

Axon _____ are at the end of the axon

Answer 18

Terminals

Question 19

The three protective membranes around the spinal cord

Answer 19

Meninges

Question 20

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

Answer 20

Synapse

Question 21

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

Answer 21

Sympathetic

Question 22

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

Answer 22

Ranvier

Question 23

The portion of the cerebrum responsible for thinking

Answer 23

Frontal

Question 24

The portion of the cerebrum responsible for vision

Answer 24

Occipital

Question 25

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

Answer 25

Neurotransmitter

Question 26

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

Answer 26

Autonomic

Question 27

After an action potential, sodium and potassium are returned to their resting potential state by a process of _______

Answer 27

Active transport

Question 28

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

Answer 28

Cell body

Question 29

______ transmitters make the post synaptic membrane more permeable to Na+ and therefore more likely to produce an action potential

Answer 29

Excitatory

Question 30

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

Answer 30

Depolarization

Question 31

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

Answer 31

Noradrenaline

Question 32

______ neurons carry nerve impulses AWAY from the CNS

Answer 32

Motor

Question 33

A type of neuron found only in the CNS

Answer 33

Interneuron

Question 34

The portion of the cerebrum responsible for understanding speech

Answer 34

Parietal

Question 35

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

Answer 35

Parasympathetic

Question 36

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

Answer 36

Repolarization

Question 37

The name given to the "nerve impulse" that passes along a neuron

Answer 37

Action potential

Question 38

The _____ nervous system contains all the nerves that effect the skeletal muscles and sensory organs

Answer 38

Somatic

Question 39

Portion of the nervous system that is not the CNS

Answer 39

PNS (peripheral nervous system)

Question 40

The portion of the brain that receives all information from the senses (except for smell)

Answer 40

Thalamus

Question 41

An involuntary response which bypasses the brain

Answer 41

Reflex

Question 42

A substance which coats the axons of nerve cells

Answer 42

Myelin

Question 43

The part of the brain responsible for conscious thought

Answer 43

Cerebrum

Question 44

The "master gland"

Answer 44

Pituitary

Question 45

_______ transmission occurs because of the myelinated nature of the axon

Answer 45

Saltatory

Question 46

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

Answer 46

Enzymes

Question 47

The part of the brain responsible for balance

Answer 47

Cerebellum

Question 48

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

Answer 48

Corpus callosum

Question 49

_______ transmitters make the post synaptic membrane less permeable to Na+ and therefore less likely to produce an action potential

Answer 49

Inhibitory

Question 50

A component of the CNS

Answer 50

Spinal cord

Question 51

The lobe of the cerebrum responsible for hearing and smelling

Answer 51

Temporal

Question 52

_____ matter in the spinal cord contains mostly cell bodies

Answer 52

Gray

Question 53

_____ matter in the spinal cord contains bundles of myelinated axons

Answer 53

White

Question 54

There are 31 pairs of ______ nerves

Answer 54

Spinal

Question 55

The sodium / potassium pump requires the energy molecule ____

Answer 55

ATP