avian respiratory system Flashcards
1
Q
what is the avian equivalent to nostrils
A
nares
2
Q
where is the origin of vocalisation
A
syrinx
3
Q
how do air sacs work
A
they are connected to lungs and some to hollow bones, decrease weight of bird and improves air flow through lungs
4
Q
do birds have a diaphragm
A
no
5
Q
what is the process of avian ventilation
A
- air passes through the larynx, trachea and into the posterior air sacs
- air moves from the posterior sacs to the lungs via the ventrobronchi and dorsobronchi
- air moves from lungs into anterior/cranial air sacs
- air moves from the anterior/cranial air sacs, through the syrinx, trachea and out of the nares
