structure and function of the cardio-respiratory system Flashcards
1
Q
what do the nose and mouth do?
A
breathes in oxygen
2
Q
what does the trachea do?
A
sends oxygen into the lungs and also provides rings of cartilage
3
Q
what do the bronchi do?
A
splits off into 2 bronchi into both lungs
4
Q
what do the bronchioles do?
A
smaller bronchi split into bronchioles which are less than 1mm in diametre
5
Q
what does alveoli do?
A
where fusion takes place (gaseous exchange) are found at the end of the bronchioles
6
Q
what are is the inner surface of the trachea (which is covered in tiny hairs) called?
A
cilia
7
Q
what is the trachea being kept open by?
A
rings of cartilage
