Blood Vessels

Blood vessels are tubes which carry only waste, nutrients and oxygen throughout the body.

• True

• False

What are the three kinds of blood vessels in the human body?

• Veins, Capillaries and Vena Cavas

• Veins, Aorta, and Vena Cavas

• Aorta, Capillaries and Veins

• Capillaries, Veins and Arteries

What is the job of the arteries?

• To take blood throughout the body

• To take blood away from the heart

• To take blood throughout the heart

• To take blood to the heart

The job of the capillaries is to assist in the exchange of only gases such as carbon dioxide and oxygen between the blood and the body tissues.

• True

• False

What is the function of veins?

• To take blood away from the heart

• To take blood throughout the heart

• To take blood throughout the body

• To take blood to the heart

The thick walls of the capillaries allow the passage of food, water, and oxygen pass from the blood vessels into the body cells.

• True

• False

Where is the largest artery of the body found?

• Near the surface of the skin

• Just between the internal digestive organs and the muscular layers of the body

• Connected to the brain

• Connected to the heart

A difference between veins and arteries is that veins have narrow lumens and arteries have wide lumens

• True

• False

What is the purpose of the valves located in veins?

• To keep the vein open for blood to flow through

• To keep blood flowing in one direction through the vein

• To allow blood to flow in both directions within the vein

• To allow the blood to flow back down to the lower parts of the body