Page 19 - E-Science Prim.4 2024-2025 U1 Con.1_Neat

Respiratory System

Our body needs oxygen from the air to get energy.

Respiration process: It’s a process by pulling air in (inhalation) and
pushing air out (exhalation) of the body.

A process by which the body gains energy from burning food by oxygen.

Respiratory system supplies the body
with Oxygen gas and gets rid of Carbon-

dioxide gas through respiration.

Carbon-dioxide gas produced
during respiration process is a

waste product “Harmful”

Respiratory system structure

1- Nose 19
2- Pharynx
3- Trachea
4- Two bronchi
5- Two lungs
6- Diaphragm

First Term