The Respiratory system

• The Respiratory system consists of?

  -mouth

  -nose

  -airways

  -lungs
• 5 founctions of The Respiratory system are?

  -Brings air from atmosphere into lungs

  -Transfers oxygen (CO2)into blood

  -Removes carbondioxide (CO2) from the blood

  -Expells heat and water into air

  -Allows vocal cord to create speech as air is breathed out.
• muscle diffusion?

  Oxygen and red blood cells combine at fisrt but then spilt so oxygen can go to working muscles and c02 goes into blood stream and goes to the heart
• Two interfaces of Transfer and Transport of gases?

  Alveoli / capillary interface (pulmonary diffusion)

  Capillary / muscle interface
• Diffusion?


  The movement of particles from an area of high concentration to an area of low concentration.
• Alveoli/capillary interface?


  During insperation alveoli has a higher 02 concentration than the capillaries, therefore 02 exchanges

  This 02 is then sent around the body
• What happends during exporation of alveoli/capillary interface?


  The concentration of c02 is higher in capillaries than in the alveoli.

  This allows for c02 to diffuse out of the capillaries and into atmosphere
• Summery of Alveoli / capillary interface?

  Inhaling:

  Diffusion of 02 into capillaries due to inhaling a higher consentration of 02.

  Exhaling:

  Diffusion of c02 into alveoli due to the higher c02 consentration in the bloodstream.
• gaseous exchange?

  Happens in alveoli, waste c02 diffuses into bloodstream and into alveoli (ready to be breathed out) This is replaced by 02 which diffuses into bloodstream
• Capillary/muscle interface?


  02 concentrations are higher in the capillaries which allows diffusion of 02 into uscle tissue.

  C02 concentrations are higher in working muscles which allows for diffusion of C02 into capillaries.
• Insperation-Pathway of oxygen (diffusion at alveoli/capillary interface?

  Nasal cavity

  Pharynx

  larynx

  trachea

  bronchus

  bronchiole
• Insperation - Pathway of oxygen (diffusion at capillary/muscle interface)?


  Pulmonary venules

  pulmonary veins

  left atrium

  bicuspid valve

  left ventrical

  aortic valve

  aorta

  arterile
• Pathway of oxygen removal


  C02 Difusion at capillary/muscle interface:

  venules

  vena cava

  right ventrical

  pulmonary valve

  pulmonary artery

  pulmonary arterioles
• Pathway of oxygen removal

  Capilary and alveolus ( diffusion at alveoli / capillary interface)

  bronchiole

  bronchus

  trachea

  larynx

  pharynx

  nasal cavity

  expiration