The Circulatory system Fun Facts!

The circulatory system in the human body, including all veins and capillaries, stretches...

• 66,000 miles

• 20 miles

• 100,000 Feet

• 8 inches

The heart beats__________times during the life of a 75-year-old.

• 2.5 Billion

• 1 million

• 420,000 million

• 5 billion

The heart expels ___ ounces of blood with each beat

• 2

• 8

• 24

• 12

The average heartbeat of a woman is about 8 beats a minute faster than a man's heartbeat

• True

• False

More heart attacks happen on a __________ than any other day of the week

Red blood cells lack Witch organelle?

(This allows the cells to carry more oxygen through the body)

• Mitochondrion

• Golgi apparatus

• Ribosomes

• Endoplasmic reticulum

• Nucleus

Some animal species, such as mollusks and lobsters, have blue blood rather than red.

• True

• False

There are no blood vessels in the cornea. Blood vessels would obstruct your vision, so instead nourishment for the corneal cells comes from the tears.

• True

• False

Eating small amounts of _____________ can be beneficial to your overall cardiovascular health because it contains flavonoids that have antioxidants.

• Dark Chocolate

• Vegetables

• Starch

• Corn

Red blood cells are highly flexible and small—roughly _________ in diameter. They fit through capillaries in single file to carry oxygen to body tissues.

• 2 microns

• 8 microns

• 1 millimeter

• .5 Centimeters