Question

question 12 (10 points)
what is the difference between systemic and pulmonary circulation?
a systemic circulation moves blood between the heart and lungs, while pulmonary circulation moves blood between the heart and the body.
b systemic circulation only carries deoxygenated blood, while pulmonary circulation only carries oxygenated blood.
c systemic circulation moves oxygenated blood from the heart to the body and returns deoxygenated blood to the heart, while pulmonary circulation moves blood between the heart and the lungs for oxygen exchange.
d systemic circulation occurs only in the veins, while pulmonary circulation occurs only in the arteries.

Explanation:

Systemic circulation transports oxygen-rich blood from the heart to all body tissues, then returns oxygen-poor blood back to the heart. Pulmonary circulation moves oxygen-poor blood from the heart to the lungs to pick up oxygen, then sends oxygen-rich blood back to the heart. Option a reverses the two circulations. Option b incorrectly states the blood oxygen levels for each. Option d is wrong because both circulations use both arteries and veins.

Answer:

c. Systemic circulation moves oxygenated blood from the heart to the body and returns deoxygenated blood to the heart, while pulmonary circulation moves blood between the heart and the lungs for oxygen exchange.