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Multiple Choice
Which part of the cardiovascular system is responsible for pushing blood throughout the body?
A
Veins
B
Lungs
C
Heart
D
Capillaries
Verified step by step guidance
1
Step 1: Understand the cardiovascular system's primary function, which is to transport blood, nutrients, oxygen, and waste products throughout the body.
Step 2: Identify the roles of the components listed in the problem: Veins, Lungs, Heart, and Capillaries. For example, veins return blood to the heart, lungs facilitate gas exchange, capillaries allow nutrient and gas exchange at the tissue level, and the heart acts as the pump.
Step 3: Focus on the mechanism of blood circulation. The heart is the muscular organ responsible for generating the force needed to push blood through the arteries to the rest of the body.
Step 4: Recall the structure of the heart, including its chambers (atria and ventricles) and how the left ventricle specifically pumps oxygenated blood into the systemic circulation via the aorta.
Step 5: Conclude that the heart is the part of the cardiovascular system responsible for pushing blood throughout the body, as it serves as the central pump in the circulatory process.