1. 1
F
F F
F F FF , F F
F F F O2 F
F F F F CO2 F
F F
F F F FF F F F F
F F F F F F F F F
F F F F F F F
FF F
F
F F F F F F
F (artery) F
F (vein ) F F F
F F F F F F
F F F F F F
F
F F 2
1. (OPEN CIRCULARTERY SYSTEM) F F
F F F F (Haemocoel)
F (Sinus) F F F F F F F
F F
2. (CLOSE CIRCULARTERY SYSTEM) F
F FF F F F F
F F
2. 2
F
F F
F F F
F F F F F F F
F F (Sinus)
F
F F
F
F F F F F
F F F F F
(Haemocoel)
F F
F F F F
F F
F F F F F F
F F F F F F
F F F F F F F
F O2
F F F F F F
3. 3
2 F F F 1 F F F 1 F
F F (ventricle) F
F F
F F F F F F
F F F F (atrium)
F F
F F 3 F
F 2 F F F
F F F
F F F F
F 1 F F
F F F
F F 2
F
F F F F F 3 F F
F 4 F F F F
F F
4 F F F F
2 F F F 2 F
F
F F
