Page 37 - Future Stars Science Explorer-5

Brainy Bites
Brainy Bites
Brainy Bites
Skin Hair
The skin is the largest external organ of the
human body. It is an important sense organ. It also
acts as a waterproof covering, guards the body
against extremes of temperature, harsh sunlight
nerves
and harmful chemicals.
Skin

Rapid

Review
Review
Review
— Everything we do is controlled by our nervous system.

— Brain is the control centre of our body.
— The automatic response of body to an event is called a reflex action.
— Sense organs are our windows to the outside world. They make us aware of our surroundings.

— The skin is the largest external organ of the human body.

Time to PractiSe

A. Tick ( ) the correct answer.

1. The __________ is the largest part of the brain.
a. cerebrum b. cerebellum c. medulla

2. The brain needs a continuous supply of __________ .

a. blood b. oxygen c. both of these

3. __________ nerves carry messages from the sense organs to the spinal
cord.

a. Sensory b. Motor c. Mixed

4. __________ is the organ of smell.
a. Skin b. Nose c. Tongue

5. __________ helps us to speak.
a. Eyes b. Tongue c. Skin

37 Science-5