Central Nervous System

Question 1

What is the nervous system

Answer 1

It’s a system that receives signals from internal and external part of the body and reacts by responding to these changes

Question 2

What I the nervous system made up of

Answer 2

CNS= BRAIN AND SPINAL CORD 
PNS= 12 CANIAL NERVES AND 36 SPINAL NERVES

Question 3

Central nervous system

Answer 3

The brain is protected by the meninges and cranium and the spinal cord by the vertebrae

Question 4

Meninges divided into

Answer 4

Dura mater
Arachnoid membrane
Pia mater

Question 5

Cerebrum
Position
Function

Answer 5

Position
- the largest part of the brain located in the cranium
Function
-centre of all menta functioning
-responsible for voluntarily action
-recieved nerve impulse from the sensory organ

Question 6

Cerebellum
Position
Function

Answer 6

Position
- located behind and below the cerebrum

Function

• controls muscle toning
• centre of balance and equilibrium

Question 7

Corpus callosum
Position
Function

Answer 7

Position
-C shaped structure between the 2 halves of the cerebellum
Function
-conducts impulse from left and right hemisphere of cerebrum
-co ordination communication processes between the 2 hemispheres

Question 8

Medulla oblongata
Position
Function

Answer 8

Position
-forms bottom part of brain sterm and extention of the spinal chord
Function
-controls automatic functions eg breathing, heart rate and widening and narrowing of blood vessels
-transmits impulse from brain to spinal cord and spinal cord to brain

Question 9

Spinal cord
Position
Function

Answer 9

Position
-extention from medulla oblongata to the vertebral canal lumber region
Function
-provides parthway for nerve impulses to and from brain
-contains relax action that initiates relax action