Question

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The diagram below represents blood moving through a portion of the cardiovascular system.




1. Which of the two types of circulation is represented in the diagram?

2. Which of the two blood vessels carries higher levels of oxygen and which blood vessel carries higher levels of carbon dioxide?

3. Describe the flow of blood represented by the diagram. Include the following terms: nutrients, artery, capillaries, vein.

Answer 1

1. pulmonary circulation

2. arteries : carry oxygen-rich blood away from from the heart to all of the body’s tissues.

veins : take blood back to the heart; this blood contains less oxygen and is rich in waste products.

3. arteries : (as previously stated on #2). they branch several times, becoming smaller as they carry blood farther from the heart and into the organs.

capillaries : small, thin blood vessels that connect arteries and the veins. their thin walls allow oxygen, nutrients, carbon dioxide, and other waste products to pass to and from cells.

veins : (as previously stated on #2). rich in waste products that are to be removed from the body. veins become larger as they get closer to the heart. the superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.