Human Anatomy and Physiology : Help with Pulmonary Circuit Physiology

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

Example Question #1 : Help With Pulmonary Circuit Physiology

The pulmonary veins carry oxygen-rich blood from the __________ to the __________

Possible Answers:

lungs . . . right atrium 

right ventricle . . . lungs 

lungs . . . left atrium 

left atrium . . . lungs 

lungs . . . left ventricle 

Correct answer:

lungs . . . left atrium 

Explanation:

The pulmonary veins carry oxygenated blood form the lungs to the left atrium of the heart. The pulmonary arteries carry deoxygenated blood from the right ventricle to the lungs. 

Example Question #2 : Help With Pulmonary Circuit Physiology

What is the name of the blood vessel that carries newly oxygenated blood from the lung back to the heart?

Possible Answers:

Pulmonary trunk

Pulmonary artery

Pulmonary vein

Aorta

Superior vena cava

Correct answer:

Pulmonary vein

Explanation:

When blood needs to leave the heart to become oxygenated, it leaves the right ventricle through the pulmonary trunk, which then splits into the right and left pulmonary arteries. This blood goes to the lungs, becomes oxygenated, and comes back to the heart via the right and left pulmonary veins, which empty into the left atrium. The newly oxygenated blood travels through the left atrium and ventricle of the heart before it exits through the aorta to deliver freshly oxygenated blood to the rest of the body.

Example Question #41 : Circulatory Physiology

Which pairing of chambers corresponds to those that receive deoxygenated blood and pump blood into the pulmonary circuit?

Possible Answers:

Right ventricle and atrium

Left ventricle and right atrium

Left and right ventricle

Left ventricle and atrium

Left atrium and right ventricle

Correct answer:

Right ventricle and atrium

Explanation:

The heart has four chambers and only two interact with deoxygenated blood. The right atrium receives deoxygenated blood from the superior and inferior vena cava which then passes through the tricuspid valve into the right ventricle where it is pumped towards the lungs to be oxygenated.

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