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Questions and Answers
What is the primary function of the pulmonary arteries?
What is the primary function of the pulmonary arteries?
- Transporting bright red, oxygen-rich blood from the lungs to the heart.
- Transporting dark red, oxygen-poor blood from the heart to the lungs. (correct)
- Transporting bright red, oxygen-rich blood from the heart to the body.
- Transporting dark red, oxygen-poor blood from the body to the heart.
Where in the body are food and oxygen released from the blood to body cells?
Where in the body are food and oxygen released from the blood to body cells?
- Arteries
- Lungs
- Capillaries (correct)
- Veins
Which of the following statements accurately describes the sequence of blood flow in the pulmonary circuit?
Which of the following statements accurately describes the sequence of blood flow in the pulmonary circuit?
- Right side of heart → pulmonary veins → lungs → pulmonary arteries → left side of heart
- Right side of heart → pulmonary arteries → lungs → pulmonary veins → left side of heart (correct)
- Left side of heart → pulmonary arteries → lungs → pulmonary veins → right side of heart
- Left side of heart → pulmonary veins → lungs → pulmonary arteries → right side of heart
If a person has a condition that impairs the function of their capillaries, which of the following would be a likely consequence?
If a person has a condition that impairs the function of their capillaries, which of the following would be a likely consequence?
What causes blood to change from dark red to bright red?
What causes blood to change from dark red to bright red?
Which type of blood vessel gradually divides into capillaries?
Which type of blood vessel gradually divides into capillaries?
Which of the following best describes the physical location of the heart?
Which of the following best describes the physical location of the heart?
What would happen if the pulmonary veins were blocked?
What would happen if the pulmonary veins were blocked?
Which of the following is the correct order of blood flow through the circulatory system?
Which of the following is the correct order of blood flow through the circulatory system?
Why is the heart described as having two pumps?
Why is the heart described as having two pumps?
Flashcards
What is the heart?
What is the heart?
A muscular organ, about the size of your fist, located in the chest, responsible for pumping blood throughout the body.
What does the right side of the heart do?
What does the right side of the heart do?
The right side of the heart receives deoxygenated blood and pumps it to the lungs to get oxygen.
What does the left side of the heart do?
What does the left side of the heart do?
The left side of the heart receives oxygenated blood from the lungs and pumps it to the rest of the body.
What is the role of pulmonary arteries?
What is the role of pulmonary arteries?
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What is the role of pulmonary veins?
What is the role of pulmonary veins?
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What are capillaries?
What are capillaries?
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Study Notes
- The heart is a muscle, roughly the size of a clenched fist.
- It sits on the left side of the chest, protected by the rib cage and positioned between the lungs.
- The heart is composed of thick, muscular walls and divided into two pumping sections.
- The right side of the heart pumps dark red, oxygen-poor blood.
- This blood travels through pulmonary arteries to the lungs for oxygen replenishment, turning it bright red.
- Oxygenated, bright red blood returns to the heart's left side via pulmonary veins.
- Blood exits the left side of the heart through arteries, which branch into capillaries.
- Capillaries deliver food and oxygen to the body's cells.
- The blood then travels through veins back to the right side of the heart, completing the cycle.
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