Double Circulatory System
Humans have a double circulatory system, meaning blood passes through the heart twice for every full circuit of the body.
What is the main advantage of a double circulation?
What is Double Circulatory System?
"A double circulatory system is one in which blood flows through the heart twice for each complete circuit of the body."
What is the main function of the heart?
Which side of the heart pumps blood to the lungs?
Why are the walls of the left ventricle thicker than the walls of the right ventricle?
Two Circuits
Pulmonary circuit: Heart to lungs and back (low pressure).
Systemic circuit: Heart to body and back (high pressure).
Ensures faster delivery of oxygen to cells.
Because of the double circuit, oxygenated and deoxygenated blood never mix.
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