Quiz: Circulatory Pathways

As blood leaves the heart to be transported to the tissues of the body, it travels through vessels that begin large in diameter and end small in diameter. Which of the following is the correct sequence of blood flow away from the heart in reference to vessel diameter?

• • arteries, arterioles, capillaries

• • arteries, capillaries, arterioles

• • arterioles, arteries, capillaries

Oxygen is transported in the blood to be delivered to the tissues. At the same time, carbon dioxide leaves the tissues and enters the blood to be delivered to the lungs for exhalation. Which of the following are the vessels where this gas exchange occurs?

• • arteries

• • veins

• • capillaries

Which of the following statements is correct regarding the flow of oxygenated blood?

• • leaves the lungs and enters the left side of the heart

• • leaves the lungs and goes to the tissues of the body

• • leaves the heart, enters the lungs, and then goes to the other body tissues.

Oxygenated blood travels through vessels from the lungs to the left side of the heart. The oxygenated blood is traveling through __________.

• • arteries

• • veins

• • capillaries

Deoxygenated blood travels from the right side of the heart through vessels to the lungs to become oxygenated. The deoxygenated blood is traveling through __________.

• • arteries

• • veins

• • capillaries

Oxygenated blood travels from the left side of the heart through vessels out to body tissues. The oxygenated blood is traveling through __________.

• • arteries

• • capillaries

• • veins

Deoxygenated blood traveling from the body tissues back to the heart is traveling through __________.

• • capillaries

• • veins

• • arteries

Based on answers to the four previous questions, which of the following is the best definition of an artery?

• • vessels that transport oxygenated blood

• • vessels that transport blood away from the heart

• • the place where oxygen is exchanged with carbon dioxide