Ima

Definition:

A human organ system is a group of organs that work together to perform a particular job and keep our body healthy.

Main Points:

1. The human body has many organ systems.

2. Each organ system has a special function.

3. The digestive system digests food and gives energy.

4. The respiratory system helps us breathe.

5. The circulatory system carries blood and oxygen.

6. The nervous system controls body actions.

7. The skeletal and muscular systems help in movement.

8. The excretory system removes waste from the body.

Interesting Points:

1. The heart works day and night without rest.

2. The brain controls the whole body.

3. We breathe even when we are sleeping.

4. An adult human body has 206 bones.

5. All organ systems work together like a team.

Fun Fact:

Your lungs help you breathe about 20,000 times every day!