Blood vessels

Which blood vessel has thick ellastic walls?

• Veins

• Arteries

• Capillaries

• Oxygen

Which artery contains deoxygenated blood?

• Vena cava

• Pulmonary Vein

• Pulmonary artery

• Aorta

The blood vessel carrying deoxygenated blood to the heart is called what?

• Vena cava

• Pulmonary vein

• Aorta

• Capillaries

Which blood vessel is one cell thick?

• small arteries

• Vena cava

• Small veins

• Capillaries

Which blood vessels contain valves?

• Pulmonary circuit

• Veins

• Aorta

• Arteries

Why does this blood vessel contain valves?

• To retrun the blood to the capilaries

• To slow down the passage of blood

• Stop the back flow of blood

• To oxygenate the blood

How long does a red blood cell stay in our blood?

• 4 hours

• 100 days

• 40 days

• 120 days

Why are capllaries one cell thick?

• To allow for oxygen and carbon dioxide to enter and leave the cell.

• So they can fit in small spaces.

• For the bants.

• So the heart can keep on pumping blood.

Which pathway is the systemic circuit?

• Heart-- Head--Body

• Heart---Body---Heart

• Lungs---Body---Lungs

• Heart---Lungs---Heart

What is the function of a valve?

• Stops unwanted blood entering an area.

• Keeps the blood nice and warm.

• Stops blood flowing backwards.

• Checks the blood for disease.