Blood Vessels

Which are examples of blood vessels?

• Artery

• Vein

• Capillaries

• All of the above.

Pulmonary vein carries...

• Deoxygenated blood from the heart to the lung

• Oxygenated blood from the lung to the heart

Pulmonary artery carries...

• Oxygenated blood from the heart to the lung

• Deoxygenated blood from the heart to the lung

Choose the characteristics of arteries...

• Have very thick, strong, elastic walls.

• Have thin walls, made up of only

  one layer of cells.

• Have thinner walls, large space inside the vessel.

Choose the characteristics of veins.

• Have very thick, strong, elastic walls.

• Have thin walls, made up of only

  one layer of cells.

• Have thinner wall, large space inside the vessel.

Choose the characteristics of capillaries.

• Have very thick, strong, elastic walls.

• Have thin walls, made up of only

  one layer of cells.

• Have thinner walls, large space inside the vessels.

What is the function of valves?

• To prevent mixing of oxygenated and deoxygenated blood

• To transport blood in one direction

• To prevent backflow of blood

What are present in veins but absent in arteries?

• smooth elastic tissues

• muscular tissues

• valves

What is the function of capillaries?

• Transports deoxygenated blood

• Transport oxygenated blood

• Site for exchange of materials

How are capillaries adapted for their function?

• Have partially permeable walls

• One-cell thick endothelium

• Presence of valves

• Large lumen