Nervous System

Question 1

Define nervous system

Answer 1

Network system is a communications network that controls all other systems in your body

Question 2

Centeral nervous system

Answer 2

Made up of brain and spinal chord, receive information then sends out message telling body how to respond

Question 3

Peripheral nervous system

Answer 3

Primarily the nerves which send the message to and from the CNS to other parts of your body

Question 4

3 types of neurons

Answer 4

Motor neurons, sensory neurons, connector neurons

Question 5

Motor neurons

Answer 5

Carry message from CNS to effectors

Question 6

Connector neurons

Answer 6

Transmit messages between neurons in the CNS

Question 7

Sensory neurons

Answer 7

Have specialise receptors which are sensitive to stimuli eg heat/light, carry messages from CNS to cells in sense organs eg eye, ear, tongue, skin

Question 8

The brain

Answer 8

Cerebrum, cerebellum, brain stem/medulla and spinal chord, hypothalamus

Question 9

Cerebrum

Answer 9

Occupies mor than 80% of brain
Function: controls conscious thoughts and the intentional (voluntary) movement ofevery body part e.g. physical pain, sound heard, light seen

Question 10

Cerebellum

Answer 10

Located where skull curls inwards
Function: responsible for co-ordination/balance

Question 11

Brain stem/medula and spinal chord

Answer 11

Lower part of brain stem/medulla seen where spinal chord widens after passes skull
Function: controls body’s vital functions e.g. breathing, blood pressure

Question 12

Hypothalamus

Answer 12

Conjunction with pituitary gland, links nervous system and endocrine system
Function: maintains homeostasis of the body