the respiratory system why do astronauts wear space suits and carry oxygen when they go out in...
TRANSCRIPT
The Respiratory System
• Why do astronauts wear space suits and carry oxygen when they go out in space?
Why do deep sea divers take oxygen with them on a dive?
The Respiratory System Functions
• The respiratory system moves oxygen from the outside environment into the body.
• It also removes carbon dioxide and water from the body.
Respiration: What is it?
oxygen + sugar Energy and carbon dioxide
Respiration is the process by which oxygen and glucose (sugar) go through a chemical reaction inside cells. The chemical reaction releases energy that the cell uses.
Breathing – it is not the same as respiration
• Breathing is moving air in and out of your lungs.
• http://www.broncus.com/patients.asp
Air
• Air is made up of a mixture of gases.• 21% oxygen• 78% nitrogen• 1 % carbon dioxide, helium and other gases.
• What is most of the air you breathe?
The Path of AirAs air travels from outside, it travels through the nose , pharynx, larynx, trachea and bronchi and bronchioles to the lungswww.phschool.com
(pharynx)
The alveoli
The alveoli are tiny air sacs in the lungs
Inside the Lungs
The diaphragm
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AnatomyofBreathing
http://www.phschool.com/atschool/phsciexp/active_art/respiratory_system/index.html