Chapter 1_Quiz1

The upper two chambers are seperated by.......

• valves

• flaps

• walls

• atrium

There are .............types of blood vessels.

• 2

• 4

• 3

• 5

........ return blood from the body to the heart.

• veins

• valves

• aorta

• nose

Answer explanation

collect oxygen-poor blood throughout your body and carry it back to your heart.

There are .......... types of veins.

• 3

• 1

• 2

• 5

The two lower chambers of the heart are called _____

• autrium

• aorta

• vena cava

• ventricle

Which of the following is a synonym for the circulatory system?

These blood cells help fight infection and other diseases.

what is a fist size muscular organ?

we have to ____________ to be active 

• exercise

• sleep

• eat

• jump

Cells help in building immune system of the body