Blood Vessel Types

Question 1

Have very thick walls and very thin lumen (hollow passage). Deal with high blood pressure. These vessels expand to propel blood along. Blood is very high in nutrients

Answer 1

Artery

Question 2

Smaller version of veins, thin wall with a large lumen, they collapse easy under pressure

Answer 2

Venules

Question 3

Valves in the endothelial layer prevent back flow of blood. Blood pressure is very low making valves essential, their walls are thin with a large lumen. They vary in size the venae cave being largest. Blood is very high in waste products

Answer 3

Veins

Question 4

Small versions of arteries. The middle layer of the walls is involuntary muscle tissue. Under normal conditions all of these blood vessels are slightly contracted maintaining the blood pressure.

Answer 4

Arterioles

Question 5

The walls of this vessel are one cell thick and porous allowing for gas exchange. A large amount of fluid filters out and and bathes the tissues before filtering back in. These link up to venules.

Answer 5

Capillaries

Question 6

Carry deoxygenated blood back to the heart, except the pulmonary

Answer 6

Vein

Question 7

When large blood supply is required by an active organ these vessels relax and dilate to supply it. They contract when the organ is at rest

Answer 7

Arterioles

Question 8

These vessels distribute essential oxygen and nutrients to most parts of the body. They supply all but the deep brain, epidermis and hyaline cartilage

Answer 8

Capillaries

Question 9

They carry deoxygenated blood from capillaries to a larger blood vessel

Answer 9

Venules

Question 10

Carry oxygenated blood from the heart to the body. The pulmonary — carries deoxygenated blood to the lungs

Answer 10

Arteries