Statistics for Circulatory System

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Function	Term	% Correct
The main organ of the circulatory system	Heart	99%
Vessels that carry blood away from the heart	Arteries	81%
Vessels that carry blood towards the heart	Veins	81%
The largest artery in the body	Aorta	77%
Extremely thin vessels which exchange oxygen and nutrients for carbon dioxide and tissue waste	Capillaries	67%
Receives oxygen-rich blood	Left Atrium	58%
Pumps oxygen-rich blood throughout the body	Left Ventricle	58%
Receives oxygen-poor blood	Right Atrium	58%
Pumps oxygen-poor blood to the lungs	Right Ventricle	58%
A thin muscular wall that divides up the above	Septum	36%
Brings the oxygen-rich blood from the lungs back to the heart	Pulmonary Veins	23%
The artery that brings oxygen-poor blood to the heart	Pulmonary Arteries	17%