5. Respiratory System Flashcards
(5 cards)
1
Q
What is the function of the respiratory system?
A
To exchange oxygen and carbon dioxide between the body and the environment.
2
Q
Sequence the structures in the respiratory system.
A
Nose/Mouth → Trachea → Bronchi → Bronchioles → Alveoli → Capillaries
3
Q
What is the function of alveoli?
A
Tiny air sacs where gas exchange occurs by diffusion.
4
Q
Define diffusion in respiration.
A
Movement of oxygen into blood and carbon dioxide out, across alveoli walls.
5
Q
How do fish and mammal respiratory systems compare?
A
Fish use gills and water flow; mammals use lungs and breathe air.
