The Nervous System

Question 1

What is the nervous system

Answer 1

Aliased network of cells in the human body and is our primary internal communication system

Question 2

What is the nervous system based on

Answer 2

Chemical and electrical signals

Question 3

What are the 2 main functions of the nervous systems

Answer 3

.collect, process and respond to information in the environment
.co-ordinate the working of different organs and cells in the body

Question 4

What are the 2 subsystems of the nervous system

Answer 4

.central nervous system
.peripheral nervous system

Question 5

What are the two parts of the CNS

Answer 5

Brian and Spinal cord

Question 6

What are the 2 subdivisions of the PNS

Answer 6

.Autonomic nervous system
.Somatic nervous system

Question 7

What are the 2 subdivisions of the autonomic nervous system

Answer 7

.Sympathetic nervous system
.Parasympathetic nervous system

Question 8

How does the brain receive information and where is it sent to

Answer 8

from sensory receptors and sends messages to
muscles and glands

Question 9

What type of awareness is the brain involved in

Answer 9

conscious awareness and involved in all psychological processes

Question 10

How many hemispheres does our brain have

Answer 10

2

Question 11

How many brain regions do we have

Answer 11

4

Question 12

What is the role of the brain stem

Answer 12

Controls involuntary and automatic processes such as breathing blinking

Question 13

What is the role of the cerebral cortex

Answer 13

It’s the brains outer layer that distinguishes our higher mental functions from those animals

Question 14

What is the role of the signal cord

Answer 14

Transfers messages to and from the brain and around the body and is responsible for simple reflexes

Question 15

What are the 4 brain regions

Answer 15

Occipital, temporal, parietal and frontal

Question 16

What is the role of the PNS

Answer 16

To relay nerve impulses/messages from the CNS
around the body and back to the CNS

Question 17

What are the two divisions of the PNS

Answer 17

Somatic NS and Autonomic NS

Question 18

What is the role of the somatic NS

Answer 18

it relays sensory neurons to the CNS and motor neurons away from the CNS and is responsible for basic reflexes

Question 19

What is the function of autonomic NS

Answer 19

Controls involuntarily actions that work efficiently when they aren’t thought about

Question 20

What are the two divisions of the autonomic NS used to deal with

Answer 20

Fight or flight situations

Question 21

What is meant by fight or flight

Answer 21

Our response to deal with threatening situations

Question 22

Which of the two Autonomic NS divisions is primarily involved with fight or flight responses

Answer 22

Sympathetic

Question 23

What does the sympathetic NS do during threatening situations

Answer 23

Releases neurons/impulses from the SNS to every organ and glad in the body which leads to increased BPM, blood pressure and breathing rates.

Question 24

What happens to digestion, salivation and urination in the sympathetic NS during a threatening situation

Answer 24

They slow down

Question 25

What is the role of the parasympathetic NS

Answer 25

It works alongside the SNS to relax the body once the threatening situation has passed

Question 26

What is it called when the parasympathetic NS causes the body to slow down

Answer 26

Rest and digest

Question 27

What does the parasympathetic NS do to BPM and blood pressure and breathing

Answer 27

Slows them down