Insect Respiratory System Flashcards
1
Q
What are spiracles
A
Small holes in the exterior of an insect used for gas exchange
2
Q
Where is the tracheal fluid
A
In the tracheoles
3
Q
What is the purpose of tracheal fluid
A
To lubricate the tracheoles and to dissolve the oxygen for easier diffusion into the haemolyph
4
Q
What happens to tracheal fluid when the insect is more active than normal
A
The tracheal fluid withdraws to increase the surface area of the tracheole when more active as more oxygen is needed in the haemolyph.
