blood vessels & ECG quiz practice

The vessels that carry blood away from the heart

Veins have ______ to prevent backflow of blood.

These have valves that prevent backflow of blood

• arteries

• arterioles

• veins

• capillaries

The blood vessel labeled "C" represents a _______________.

• artery

• vein

• capillary

• none of these are correct

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

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

Why is the wall of a capillary only one cell thick?

• to prevent the backflow of blood

• to allow the capillary to stretch and recoil

• to enable the capillary to withstand high-pressure blood

• to allow the capillary to exchange substances

A recording of the electrical events occurring during the cardiac cycle is called an _______.

• EKG/ ECG

• ATP

• IST

• MRI

• PET

The blood vessel labeled "A" represents a _______________.

• artery

• vein

• capillary

• none of these are correct

Which type of blood vessel is very thick to withstand lots of pressure

• Arteries

• Veins

• Capillaries

Which type of blood vessel allows substances to enter and leave the blood?

• artery

• vein

• capillary