Respiratiom Flashcards
Define diffusion
CO2 moves from the blood to the alveoli
What occurs at the alveoli
Gas exchange
Delivery of the oxygen from the lungs into the blood stream
What specialised cell is damaged by smoking?
Cillia
Aerobic respiration
Glucose+oxygen—> carbon dioxide+water + energy
Anerobic respiration
Lactic acid —> CO2 + energy
Where does respiration occur
Cells all around the body
Why do we respire (3)
- growth
- repairs
- movement
Arteries adaptations
High pressure
Thick outer walls
Thick layers of muscles
Vein adaptations
Low pressure
Thin walls
Thin layer of muscles
One way valves
What things respire?
All living things
Movement of diagram when inhaling
Contracts and moves downwards
Movement of diagragm exhaling
Relaxes and moves upwards
Movement of intercostal muscles (inhaling)
Contract
Moving the ribs upwards and outwards
Movement of intercostal muscles exhaling
Relax
Letting ribs move downwards and inwards
Alveoli - features
Give lungs big surface area
Joist thin walls (just one cell thick)
Diffusion
Oxygen diffuses into capillaries
CO2 diffuses out
Arteries - blood
Takes blood away from the heart
Veins - blood
Bring blood back to the heart
Capillaries - direction
Inbetween veins and capillaries
Small gaps
Where is glucose from
Carbohydrates
