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SCIENCE - Coggle Diagram
SCIENCE
Breathing in
intercostal muscles pull ribs up and out
diaphragm moves down
alveoli
adaptions
Good blood supply
This maintains the concentration gradient for diffusion
Thin walls
Shorter diffusion distance
Large surface area
To allow more gas exchange
Moist lining
Constant ventilations
Diffusion is the movement of gas or liquid from an area of high concentration to an area of low concentration
Breathing out
Intercostal muscles relax
Diaphragm relaxes
Larynx
Voicebox containing vocal chords and passage for air
Valve to close air passage
Trachea
Allows oxygen into lungs
Rings of c shaped cartilage stop the trachea from collapsing and helps keep it open when breathing
Bronchiols
Branches of the bronchus split into the bronchiols
The brochiols then split into the alveoli
