science form 3 chap 1 -1.1, 1.2

Human nervous system consists of?

(a)  

Central nervous system involve?

(a)  

Peripheral nervous system involve?

(a)  

Functions of human nervous system

• detects stimuli

• sends information i the form of impulses

• interprets impulses

• produces appropriate responses

Action divided into?

(a)  

Does voluntary action go through medulla oblongata?

• No

• Yes

Give 2 examples for voluntary action.

• read a book

• touch your phone screen when received a message

• withdraw you hand when contact with hot object

What's the meaning of involuntary action?

• An action without conscious control

• prior thoughts

• An action that involve brain.

Give 3 examples for involuntary action.

• heart beat pumping

• peristalsis

• respiration

• say hello to your friend

Types of involuntary action.

• involved medulla oblongata

• involved spinal cord(reflex action)

• involved brain

• involved nerves