INSECT

1
INSECT RESPIRATION
2
Respiratory System
3
Tracheal Support
Taenidia
Annuli
4
Respiratory System - Major Trachea
dorsal trunk
heart
dorsal commissure
lateral trunk
thoracic air sac
spiracle
gut
ventral trunk
ventral nerve cord
ventral commissure
5
Oxygen Delivery to Cells
6
Spiracles
7
Spiracle Structure
8
Spiracular structure
peritreme
spines
atrium
trachea
9
Spiracular Valves
valve
filter
peritreme
trachea
valves
Closer muscle
10
Ventilation Mechanisms - Passive
Level or rate of release
closed
open
closed
open
closed
Time
Water
CO2
Oxygen
Spiracle
11
An interesting movie on insect respiration
http//www.aps.anl.gov/News/APS_News/2003/20030127
a.htm