Key Area 5 – The structure and function of arteries, capillaries and veins

Question 1

branch of an artery leading to capillaries

Answer 1

Arteriole

Question 2

blood vessel that carries blood away from the heart

Answer 2

Artery

Question 3

narrow, thin-walled blood vessel that exchanges materials with the tissues

Answer 3

Capillary

Question 4

layer of cells that lines the inner surface of blood vessels

Answer 4

Endothelium

Question 5

central channel of a tube such as a blood vessel

Answer 5

Lumen

Question 6

fluid made up from the tissue fluid collected into lymph vessels, which circulates the body

Answer 6

Lymph

Question 7

tiny vessels in which lymph circulates around the body

Answer 7

Lymph vessels

Question 8

system of vessels and nodes that deals with lymph in the body

Answer 8

Lymphatic system

Question 9

water movement from high water concentration to lower water concentration through a selectively permeable membrane

Answer 9

Osmosis

Question 10

liquid component of the blood

Answer 10

Plasma

Question 11

fluid which bathes cells in tissues; derived from blood

Answer 11

Tissue Fluid

Question 11

passage of molecules through membranes under pressure

Answer 11

Pressure Filtration

Question 12

narrowing of blood vessels to reduce blood flow

Answer 12

Vasoconstriction

Question 13

widening of blood vessels to increase blood flow

Answer 13

Vasodilation

Question 14

blood vessel with valves that transports blood back to the heart

Answer 14

Vein

Question 15

small branch of a vein

Answer 15

Venule