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The Respiratory System

Gunner Howard
Across
_ walls are extremely thin and composed of a single layer of tissue
Spongy sacs
System that works with the lungs to pump oxygen-rich blood to all cells in the body
This lung only has two lobes
Tubes lined with tiny hairs called cilia
A sticky fluid that collects dust and germs
Organ that carries out the exchange of gases as we breathe
The windpipe
Down
Tiny hairs that line the bronchial tubes
This vein carries oxygen-rich blood to the left side of the heart
Carbon dioxide and _ are exchanged as we brethe
This lung has three lobes
A dome-shaped muscle that controls breathing
The lungs are divided into these
Hollow spaces in the skull that help regulate the temperature and the humidity of the air that we breathe