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level: Level 2

Questions and Answers List

level questions: Level 2

Question	Answer
1 thick-walled chambers that forcefully pump blood out of the heart 2 thin-walled chambers that receive blood from the veins.	1 ventricles 2 atria
1 receives oxygenated blood from the pulmonary veins 2 receives deoxygenated blood from systemic veins	1 left atrium 2 right atrium
channels or conduits through which blood is distributed to body tissues. It make up two closed systems of tubes that begin and end at the heart	Blood vessels
1 carry blood away from the heart. 2 Blood is pumped from the ventricles into large elastic arteries that branch repeatedly into smaller and smaller arteries until the branching results in microscopic arteries called __ play a key role in regulating blood flow into the tissue capillaries.	1 Arteries 2 arterioles
the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins). The primary function is the exchange of materials between the blood and tissue cells	Capillaries
1 carry blood toward the heart 2 After blood passes through the capillaries, it enters the smallest veins, called __	1 Veins 2 venules
1 transport blood that has a low oxygen content from the right ventricle to the lungs. 2 transport oxygenated blood from the left ventricle to the body tissues	1 Pulmonary arteries 2 Systemic arteries
1 transport blood from the lungs to the left atrium of the heart. This blood has a high oxygen content because it has just been oxygenated in the lungs. 2 transport blood from the body tissue to the right atrium of the heart. This blood has a reduced oxygen content because the oxygen has been used for metabolic activities in the tissue cells.	1 pulmonary veins 2 Systemic veins