1. The Respiratory System

2. How air moves through the Respiration System
Nose or Mouth
Trachea
Bronchi
Pharynx
Lungs
Larynx

3. Breathing Cellular Respiration
The process by which a body gets and uses oxygen & releases carbon dioxide and water
The process whereby cells obtain energy from food molecues

5. The primary passageway into and out of the respiratory system
Air is inhaled through nose, where it comes into contact with warm, moist surfaces.
Dust and other particles are filtered through the nose
Air can also enter and leave through the mouth.

6. What is the function of the nose?
The primary passageway into and out of the respiratory system
Air is inhaled through nose, where it comes into contact with warm, moist surfaces.
Dust and other particles are filtered through the nose
Air can also enter and leave through the mouth.

7. Air flows from the nose to the pharynx
Pharynx splits into 2 tubes
One tube leads to the stomach
The other tube leads to the lungs

8. What is the function of the pharynx?
Air flows from the nose to the pharynx
Pharynx splits into 2 tubes
One tube leads to the stomach
The other tube leads to the lungs

9. Also called the voice box
Contains the vocal cords
A pair of elastic bands that are stretched across the opening of the larynx
Muscles attached to larynx control how much vocal cords are stretched
When air flows over vocal cords, they vibrate and make sound

10. What are the vocal cords?
What is the larynx?
What are the vocal cords?
How is sound made with the vocal cords?
Also called the voice box
Contains the vocal cords
A pair of elastic bands that are stretched across the opening of the larynx
Muscles attached to larynx control how much vocal cords are stretched
When air flows over vocal cords, they vibrate and make sound

11. The passageway for air traveling from the larynx to the lungs
Also called windpipe

12. What is the function of the trachea?
The passageway for air traveling from the larynx to the lungs
Also called windpipe

13. Trachea splits into 2 tubes called bronchi
Bronchi – plural
Bronchus – singular
One bronchus goes into each lung
Then branches into thousands of tiny tubes called bronchioles

14. Trachea splits into 2 tubes called bronchi
Bronchi – plural
Bronchus – singular
One bronchus goes into each lung
Then branches into thousands of tiny tubes called bronchioles
What are the bronchi?

15. 2 large spongelike lungs
In lungs, each bronchiole branches to form thousands of tiny sacs called alveoli
Capillaries surround each sac

16. 2 large spongelike lungs
In lungs, each bronchiole branches to form thousands of tiny sacs called alveoli
Capillaries surround each sac
What are the lungs similar to?
What are alveoli?