The respiratory system
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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.

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Presentation Transcript
The respiratory system
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 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
Respiration: What is it?

  • 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 – 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 air
The Path of Air

As air travels from outside, it travels through the nose , pharynx, larynx, trachea and bronchi and bronchioles to the lungs

www.phschool.com

(pharynx)


The alveoli
The alveoli

The alveoli are tiny air sacs in the lungs


Gas exchange in the lungs
Gas Exchange in the Lungs

animation of gas exchange



The diaphragm
The diaphragm

http://www.phschool.com/webcodes10/index.cfm?fuseaction=home.gotoWebCode&wcprefix=cbp&wcsuffix=0373


AnatomyofBreathing

http://www.phschool.com/atschool/phsciexp/active_art/respiratory_system/index.html


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