Circulatory System — function?
Transports blood, nutrients, gases, waste.
Circulatory System — role?
Transports blood, nutrients, gases, waste.
Heart chambers — number?
Four chambers: two atria, two ventricles.
Red Blood Cells — function?
Carry oxygen with hemoglobin.
Capillaries — role?
Exchange gases, nutrients, waste with tissues.
Blood Vessel Types — function?
Arteries: carry blood away; veins: carry to; capillaries: exchange.
Heart Chambers — number?
Four: two atria, two ventricles.
Pulmonary circulation — pathway?
Right ventricle to lungs, back via pulmonary veins.
Systemic circulation — pathway?
Left ventricle to body, return via veins.
Blood components — main types?
Plasma, RBCs, WBCs, platelets.
Test your knowledge with 10 questions on Circulatory System and Heart Function.
1. What is blood?
2. What is the primary role of hemoglobin in red blood cells?
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