The Respiratory System

Function

• To absorb oxygen and release carbon dioxide

Organs

• Nose- main passageway into and out of the respiratory system

• Pharynx- (throat) the passage from the mouth to the larynx and esophagus

• Larynx- the area of the throat that contains the vocal chords and produces vocal sounds

Organs continued

• Trachea (windpipe)- that connects the larynx to the lungs

• Bronchi- the two tubes that connect the lungs with the trachea

• Alveoli- tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged

Main Ideas

• Breathing is only 1 part of respiration

• There are capillaries around the alveoli. This is where oxygen and carbon dioxide are exchanged

Main Ideas continued• Some respiratory disorders include:

– asthma– emphysema– Enterovirus

• The respiratory system is related to the

cardiovascular system because it exchanges the oxygen and carbon dioxide that the blood transports around the body

Respiratory System Labels

How the respiratory system works…

• After you are done the diagram:– Write a paragraph about how the respiratory system

works. Be sure to include at least 4 parts and what happens between the capillaries and the blood vessels.

– It may be helpful to use the diagram or book to trace the path of air thorough the system and then explain how the respiratory system exchanges with the blood