Homework Help: Science: Biology: Breathing Terms

Nasal Cavity - It is a section above and in the back of the nose. It filters air -traps, dirt, and bacteria and also warms air to the body temperature.

Lungs - They are light weight organs. Takes air in and out and it allows you to breathe.

Diaphragm - It is thick muscle between the lungs . It expands to exhale and contracts to inhale.

Trachea - It is a windpipe. It takes air from the throat to the lungs.

Bronchia Tube - They are two tubes that branch off from the trachea. They take air deep into the lungs.

Alveali - They are air sacs. They give oxygen to the blood.

Epiglottis - It is a flap of cartilage. It covers the trachea and prevents food from going into the trachea when you swallow.

Larynx - The upper end of the trachea voice box and the vocal chords. It vibrates to produce sound at rest. At this time, vocal chords are open.

Throat - It's the section at the back of the mouth. It's from where the food, water, and air go to the rest of the body.

Homework Help: Science: Biology

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