The __________ is the big push and the _________ is the reloading push.

• lub, dub

• dub, lub

• blood pressure, circulation

• red blood cells, white blood cells

As you move away from your heart, your blood vessels get _________.

• larger

• smaller

• thicker

• longer

If your capillaries are like driveways, your ___________ are like houses.

• cells

• hearts

• pacemakers

• blood and oxygen

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

All the blood in your vessels could stretch around the Earth _________ times.

• 2.5

• 2.5 million

• 2.5 billion

• 250 million

When the left side of your heart squeezes, blood goes to _____________________.

• all parts of your body

• carbon dioxide

• oxygen

• lactic acid

I have more _____________ blood cells in my body.

• white

• red

• oxygen

• carbon dioxide

White blood cells live longer than red blood cells.

• Totally true!

• Completely false!

It takes approximately ___________ seconds for blood to go around your body when you're exercising.

• 10

• 35

• 2.5

• 5

It takes approximately _____________ seconds for blood to go around your body when you're sitting down taking this quiz.

• 35

• 10

• 2.5

• 5

Your heart pumps about _____________ liters of blood each day.

• 7,000

• 10,000

• 100,000

• 700