Question 1

What are the throbs of your heartbeat called?

Accepted Answer

Pulse

Question 2

What do veins do?

Accepted Answer

Carry blood back to the heart

Question 3

The thinnest blood vessels are called?

Accepted Answer

Capillaries

Question 4

Why do blood veins appear blue?

Accepted Answer

They are carrying wastes and carbon dioxide

Question 5

What color is the blood in your veins actually?

Accepted Answer

Dark purple-red

Question 6

When blood is bright red you know that it is ___________ _____________

Accepted Answer

Oxygen Rich

Question 7

What carries blood away from the heart?

Accepted Answer

Arteries

Question 8

What keeps the blood in your veins flowing only one way?

Accepted Answer

Tiny valves throughout the vein.

Question 9

What are capillaries?

Accepted Answer

Tiny arteries thinner than hairs that carry food, water and oxygen to your body

Question 10

Because veins depend on the muscles around them to squeeze blood towards the heart, it is important that humans do what?

Accepted Answer

Move and exercise their bodies

Question 11

What are the layers of your large arteries, such as the Aorta?

Accepted Answer

An inside layer, a layer of involuntary muscle, and an outside layer/covering

Question 12

Arteries are elastic meaning they can ________ and _____________

Accepted Answer

Stretch, Contract

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