Respiratory System FoldableParts and Funtion

Cilia (microscopic hairs) and mucus traps dirt, pollen and other material you don’t want in your lungs.

Nasal Cavity

Throat; tube that connects to the trachea. Cilia continue to filter debris out of air.

Pharynx

Blocks the trachea when you are swallowing food.

Epiglottis

Your voice box; vocal chords attach here.

Larynx

Windpipe; tube air travels through on its way to the lungs.

Trachea

Two cone- shaped organs that hold air. Consists of bronchi, bronchioles and alveoli.

Lungs

Two tubes that branch off of the trachea. Takes air further into lungs.

Bronchi

Thousands of smaller tubes that branch off of bronchi that carry air even further into the lungs.

Bronchioles

Clusters of tiny air sacs at the end of the smallest bronchioles. Surrounded by capillaries where oxygen and carbon dioxide diffuse from blood cells.

Alveoli

Muscle below the lungs that contracts and relaxes in order to increase or decrease lung capacity (allowing you to breathe).

Diaphragm

1) Nose or nasal cavity 2) Mouth 3) Larynx 4)Lungs 5) Bronchi 6) Diaphragm 7) Pharynx 8) Trachea 9) Bronchi 10) Bronchioles 11) Alveoli

Parts and Pieces Answers