Avian Respiratory Flashcards
1
Q
What are nares?
A
The avian equivalent of nostrils
2
Q
What is used for vocalisation?
A
The syrinx
3
Q
Where does gas exchange take place?
A
Air capillaries
4
Q
What happens during inhalation?
A
Air passes through the larynx, trachea and into the posterior sacs.
5
Q
What happens during exhalation?
A
Air moves from the posterior air sacs to the lungs via the ventrobronchi and dorstalbronchi.
6
Q
Do birds have a diaphragm?
A
No
7
Q
What is an adaptation of the avian respiratory system?
A
They have air sacs which extend into some bones.
8
Q
How many respiratory cycles do birds need?
A
2
9
Q
Why do birds need two respiratory cycles?
A
To move air through the entire respiratory system.
