The Respiratory System

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

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

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.

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.

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

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

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

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

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

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

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

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?

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

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?