The Nervous System

Question 1

What are the two main components of the nervous system

Answer 1

The central nervous system(CNS), and the peripheral nervous system(PNS)

Question 2

What are the two components of the Peripheral Nervous System (PNS)

Answer 2

Somatic and Autonomic Nervous System

Question 3

What are the two components of the autonomic nervous system

Answer 3

Sympathetic and Parasympathetic Nervous System

Question 4

What are the two components of the central nervous system

Answer 4

Spinal Cord and the Brain

Question 5

What does the brain provide

Answer 5

Conscious Awareness

Question 6

The brain is involved in all

Answer 6

Psychological Processes

Question 7

What are the four main lobes of the brain

Answer 7

Frontal lobe, Parietal lobe, Temporal lobe, Occipital Lobe

Question 8

What does the occipital lobe process

Answer 8

Visual information

Question 9

What does the temporal lobe process

Answer 9

Auditory Information

Question 10

What does the Parietal lobe do

Answer 10

Integrates information from the different senses and therefore plays and important role in spatial navigation

Question 11

What is the frontal lobe associated with

Answer 11

Higher-order functions, including planning, abstract reasoning and logic

Question 12

What connects the brain and the spinal cord together

Answer 12

The brain stem

Question 13

What does the brain stem control

Answer 13

Involuntary processes

Question 14

What is the role of the spinal cord

Answer 14

To transfer messages to and from the brain and the rest of the body, and simple reflex actions that don’t involve the brain

Question 15

What is the role of the peripheral nervous system(PNS)

Answer 15

To relay messages from the central nervous system to the rest of the body

Question 16

What does the somatic nervous system facilitate

Answer 16

Communication between the CNS and the outside world and provide muscle responses via the motor pathways

Question 17

The somatic nervous system is made up of

Answer 17

Sensory receptors and motor pathways

Question 18

What do sensory receptors do

Answer 18

Carry information to the spinal cord and brain

Question 19

What do motor pathways do

Answer 19

all the brain to control movement

Question 20

The autonomic nervous system plays an important role in

Answer 20

Homeostasis

Question 21

The autonomic nervous system only consists of

Answer 21

Motor pathways

Question 22

Sympathetic nervous system is typically involved in responses that prepare the body for

Answer 22

Fight of flight

Question 23

During the sympathetic nervous system impulses travel from it to organs in the body to

Answer 23

Prepare for action when we are faced with a dangerous situation

Question 24

What’s the role of the parasympathetic nervous system

Answer 24

To relax the body and return us to our normal resting state

Question 25

What are the three main types of neurons

Answer 25

Sensory, relay and motor

Question 25

Where are sensory neurons found

Answer 25

Receptors such as eyes, ears, tongue, skin

Question 26

Where do sensory neurons carry nerve impukses

Answer 26

to the spinal cord and brain

Question 27

When sensory neurons nerve impulses reach the brain they are translated into

Answer 27

sensations, such as vision, hearing taste and touch

Question 28

Not all sensory neurons reach the brain some stop at the

Answer 28

spinal cord for quick for quick reflexes

Question 29

What are relay neurons found between

Answer 29

Between sensory input and motor output/response

Question 30

Where are relay neurons found

Answer 30

In the brain and the spinal cord

Question 31

Relay neurons allow

Answer 31

Sensory and motor neurons to communicate

Question 32

Where are motor neurons found

Answer 32

In the central nervous system

Question 33

What do motor neurons control

Answer 33

Muscle movements

Question 34

When motor neurons are stimulated they release

Answer 34

neurotransmitters

Question 35

What do neurotransmitters stimulated by motor neurons do

Answer 35

Bind to the receptors on muscles to trigger a response which lead to movement

Question 36

What are the four components of a sensory neuron

Answer 36

Receptor cell, myelin sheath, axon, cell body

Question 37

What are the four components of a relay neuron

Answer 37

Dendrite, cell body, axon, pre-synaptic terminal

Question 38

What are the five components of motor neurons

Answer 38

Dendrite, cell body, axon, myelin sheath, neurofibril node

Question 39

What do dendrites do

Answer 39

Receive signals from other neurons or from sensory receptor cells

Question 40

What does the cell body contain

Answer 40

The nucleus

Question 41

The axon carries nerve impulses in the form of an electrical signal known as

Answer 41

Action Potential

Question 42

The axon carries the action potential away from the cell body towards

Answer 42

The axon terminals, where the neuron ends

Question 43

Most axons are surrounded by a

Answer 43

Myelin sheath (except rekay neurons)

Question 44

Benefit of myelin sheath

Answer 44

Electrical impulses travel faster along the axon

Question 45

The axon terminal connects neuron to other neurons(or directly to organs) using a process called

Answer 45

Synaptic transmission

Question 46

What is the synaptic gap

Answer 46

Between the pre-synaptic neuron and the post-synaptic neuron

Question 47

Where are synaptic vesicles found

Answer 47

At the end of the neuron in the axon terminal

Question 48

Synaptic vesicles contain chemical messengers known as

Answer 48

Neurotransmitters

Question 49

When the action potential reaches the synaptic vesicles they

Answer 49

release their contents of neurotransmitters

Question 50

Once neurotransmitters have carried the signal across the synaptic gap they (synaptic transmission)

Answer 50

Bind to receptor sites on the post-synaptic cell that then become activated

Question 51

Once receptors have been activated they either produce

Answer 51

Excitatory or inhibitory effects on the post-synaptic cell

Question 52

Excitatory neurotransmitters make the post-synaptic cell

Answer 52

more likely to fire

Question 53

Inhibitory neurotransmitters make post synaptic cells

Answer 53

Less likely to fire