Transport in humans Flashcards
1
Q
parts of the heart (going anti-clockwise)
A
pulmonary artery, vena cava, right atrium, right ventricle, left ventricle( thickest wall), left atrium, the pulmonary vein and the aorta
2
Q
what do veins do?
A
they return blood to the heart
3
Q
what do arteries do?
A
take the blood supply away( to the lungs )
4
Q
what do the alveoli do?
A
help the uptake of gases as they create longer surface areas= gas exchange
5
Q
what do unicellular organisms not do?
A
the pay need help with their diffusion as their surface ares to volume is smaller
6
Q
what are the sides of the heart (in the paper)
A
left is right and right is left
