respotory system Flashcards
1
Q
Nose/Mouth:
A
Air entry points.
2
Q
Trachea:
A
Windpipe that filters and directs air to the lungs.
3
Q
Bronchi and Bronchioles
A
Airways that lead from the trachea into the lungs, branching into smaller tubes.
4
Q
Lungs:
A
Organs where gas exchange occurs; oxygen enters the blood, and carbon dioxide is removed.
5
Q
Alveoli:
A
Tiny air sacs in the lungs where gas exchange takes place.
6
Q
Diaphragm:
A
A muscle that contracts and relaxes to allow breathing.
