What's Happening
Blood Basics
Blood Flow
Heart
Random
1

When you exercise, your heart beats faster to deliver more of this to your muscles.

What is oxygen.

1

The primary function of red blood cells

 What is to carry oxygen 

1

which type of blood cell carries oxygen?

 What are red blood cells.

1

This muscular organ pumps blood throughout your body, delivering oxygen and nutrients.

What is the heart.

1

The circulatory system's main job is to transport oxygen, nutrients, and hormones and remove waste and?

What is delivering these to cells and removing carbon dioxide?.

200

The main job of the circulatory system is to deliver food and oxygen to cells and remove waste, like this gas.

What is carbon dioxide?

200

The liquid part of the blood

What is plasma?

200

What are arteries?

what is  a strong, muscular blood vessel that carries oxygen-rich blood away from the heart to deliver oxygen.

200

 what are The two upper receiving chambers of the heart

What are the atria

300

Tiny cell fragments that help your blood clot to stop bleeding.

What are platelets?

300

These cells fight infection and protect the body.

What are white blood cells.

300

What do the veins do?

 what is bring deoxygenated blood and waste back to the heart.


300

How big is your heart

What is the size of an adult fist

300

This is the force exerted by circulating blood on the walls of blood vessels, caused by ventricular contraction.

What is blood pressure?

400

The protein in red blood cells that binds to oxygen.

What is hemoglobin?

400

What are capillaries?

what is Tiny vessels where oxygen and nutrient exchange occurs.

400

True or false The heart beats about 100,000 times a day to keep you alive.

What is True

400

The muscular wall that separates the left and right sides of the heart.

What is the septum?

500

This is the main artery that carries oxygen-rich blood away from the heart to the body?

What is the aorta.