The Human Heart

What is the main purpose of the heart?

• A: It keeps the body warm.

• B: It helps the body produce plasma.

• C: It sends nutrients through the blood to all parts of the body.

• D: All of the above

What is the name of the blood vessel which carries blood away from the heart?

• A: Artery

• B: Vein

• C: Valve

• D: Atrium

Which of the following is NOT true?

• A: The heart beats every minute of the day.

• B: Blood flows at the same speed through all of the body.

• C: The heart is located a little to the left of the center of the chest.

• D: Veins carry blood back to the heart.

What do veins look like through our skin?

• A: They are slightly pink.

• B: They are big and bulgy.

• C: They are blue.

• D: They are gray.

What is an average pulse rate for a child?

• A: Seventy to one hundred beats per minute

• B: Twenty to fifty beats per minute

• C: Ninety to one hundred twenty beats per minute

• D: Fifty to seventy five beats per minute

What makes up over one-half of our blood?

• A: Plasma

• B: Red blood cells

• C: Veins

• D: Arteries