Open Circulatory System
The blood is pumped out of the heart into sinuses and the cells and tissues are directly bathed in it.
Closed Circulatory System
The blood is circulated within a network of vessels.
Open Circulatory System
The blood is pumped out of the heart into sinuses and the cells and tissues are directly bathed in it.
Closed Circulatory System
The blood is circulated within a network of vessels.