The Respiratory System

1
The Respiratory System

• The process of breathing in is called inhalation
  or inspiration.
• The process of breathing out is called exhalation
  or expiration.

2
The Respiratory System Chapter 16.3

• Respiration is the exchange of oxygen and carbon
  dioxide between living cells and their
  environment.
• Alveoli are tiny air sacs in the lungs where
  oxygen and carbon dioxide are exchanged.

3
Respiratory Problems

• Asthma is a condition where the bronchial tubes
  in the lungs narrow causing wheezing and the
  feeling of not taking in enough air.
• Bronchitis is inflammation of the bronchial
  tubes.
• Emphysema is when the alveoli stiffen, and
  enlarge making it difficult to get rid of old air
  and take in fresh air.

4
Cellular Respiration

• The process in which cells use oxygen to release
  energy stored in sugar molecules.
• During this process carbon dioxide and water are
  made. These products are then carried by the
  blood back to the lungs to be exhaled.

5

• The respiratory system is a group of organs whose
  main function is to take in oxygen and expel(get
  rid of ) carbon dioxide.
• It works with the cardiovascular system to
  deliver oxygen to the bodys cells

6
Respiratory System Anatomy

• Pharynx- the passage from the mouth to the larynx
  and esophagus
• Larynx- the area of the throat that contains
  vocal cords and produces vocal sounds
• Trachea- the tube connecting larynx and lungs
• Bronchi- two tubes connecting lungs and trachea