lungs by the end of the lesson you should be able to: label the internal structures of the lungs...

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Lungs Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient gas exchange Explain the role of diffusion in gas exchange State the features of the capillary network that allow efficient gas exchange

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Page 1: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

LungsLungs

By the end of the lesson you should be able to:

Label the internal structures of the lungs State the features of the alveoli which

allow efficient gas exchange Explain the role of diffusion in gas

exchange State the features of the capillary

network that allow efficient gas exchange

Page 2: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

Breathing

footprints breathing

Page 3: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

The lungs

organs that allow gas exchange

oxygen in / CO2 out

trachea- has rings of cartilagebronchi (bronchus)bronchiolesalveoli (alveolus)

computer animation

Page 4: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

Alveoli (air sacs)

provide large surface area for gas exchange

one lung equivalent to a tennis court of surface area using alveoli

footprints alveoli

Page 5: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

air sac in lungs deoxygenated blood

oxygenated blood

body cells

air in

air out

skool gas exchange

Page 6: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

Features of Alveoli for Features of Alveoli for efficient gas exchangeefficient gas exchange

large surface area to absorb oxygen. moist surface to allow oxygen to

dissolve. thin lining to allow easy diffusion of

gases. dense network of blood capillaries

for easy gas exchange.

skool adaptation of alveoli

Page 7: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

Features of capillaries for Features of capillaries for efficient gas exchangeefficient gas exchange

dense network to carry CO2 and O2

Large surface area to transport gases

Lining is one cell thick so gases can pass through quickly and easily.

Page 8: Lungs By the end of the lesson you should be able to: Label the internal structures of the lungs State the features of the alveoli which allow efficient

LungsLungs

Can you? Label the internal structures of the lungs State the features of the alveoli which

allow efficient gas exchange Explain the role of diffusion in gas

exchange State the features of the capillary

network that allow efficient gas exchange

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