Spencer Respiratory System

Created by jdspence 

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Lungs

Site of gas exchange between the atmosphere and the blood

Epiglottis

Covers the opening to the trachea when food is being swallowed

Pharynx

Allows passage of both food and air (throat)

Larynx

Upper end of the trachea where sounds are produced (voice box)

Trachea

The tube air passes through from the pharynx (windpipe)

Alveoli

Cluster of tiny air sacs where oxygen diffuses into the blood and carbon dioxide diffuses out of the blood

Oxygen

Diffuses into the blood

Carbon dioxide

Diffuses out of the blood

Inspiration

Taking air into the lungs; ribs move outward and diaphragm puses down

Expiration

Expelling air form the lungs; rib muscles relax and diaphragm elevates

Breathing Rate

Controlled by the brain monitoring the levles of CO2 in the blood

Diaphragm

Muscle, Large, flat muscle at the bottom of the chest cavity that helps with breathing

Pleura

Lining around the lungs

Bronchial Tubes

Branches off the trachea

Function of the Respiratory System

Transport gases to and from the cardiovascular system

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