The respiratory

.The respiratory system help us to

.provide oxygen to various parts of our body.

.release energy from food

it is made up of various organ,such as the

The main parts of respiratory system

Nose mouth : Air enters the body through the nose or mouth the nose helps filter warm and moisten The air

1.Trachea wind pipe:This is a tube that connects the throat to lungs.it corries air down into the lungs

2.Lungs:The main organs of the respiratory system where gas exchange happens .They take in oxygen and release

carbondioxide

3.Bronchi:These are the two tubes that branch of from the branch and lead into each lung.

4:These are the two tubes that branch of from the branchea and lead into each lung

1. Alveoli: Tiny air sacs in the lungs where oxygen enters the blood and carbon dioxide leaves the blood.

2. Diaphragm: A muscle located below the lungs that helps with breathing. When it contracts, it helps pull air into the lungs.

How Does Breathing Work?

1. Inhale (Breathe In): The diaphragm contracts and moves down, creating space in the chest cavity. Air is drawn into the lungs through the nose or mouth.

2. Gas Exchange: In the alveoli, oxygen from the air passes into the blood, and carbon dioxide from the blood passes into the alveoli.

3. Exhale (Breathe Out): The diaphragm relaxes and moves up, pushing air out of the lungs and back out through the nose or mouth.

Importance of the Respiratory System

• Oxygen Supply: Provides the oxygen we need to survive.

• Removal of Carbon Dioxide: Helps remove waste gases from the body.

• Voice Production: Allows us to speak by producing sound as air passes through the vocal cords in the larynx (voice box).

Facts

• You breathe about 20 times per minute when you are resting.

• The lungs are not the same size; the right lung is larger than the left lung to make room for the heart.

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