GAS EXCHANGE Flashcards
1
Q
What does ventilation mean
A
moving air in and out of lungs
2
Q
What happens in the alvioli
A
Gas diffuses in and out of the blood
3
Q
What happens after in the alveoli gas diffuses in and out of the blood oxh
A
Oxygenated blood travels back to the heart to be pumped around the body
4
Q
What do alveoli carry
A
deoxygenated blood
5
Q
What are the functions of alveoli (3) 1wlsa
A
The walls are permable, walls are one cell thick, has a large surface area
6
Q
What happens in inhalation (3)
A
Intercoastal muscles contract, ribs move up and down, diafram contracts and dilates
7
Q
Explain how coronary heart disease can cause death OLCAB
A
less oxygen, lactic acid, coronary artery is blocked, there is less respiration
