Circulatory System and Respiratory System

The main organ in the circulatory system is the

• Heart

• Lungs

• Stomach

• Intestines

How many chambers does blood travel through

before it goes to the lungs?

• 2

• 4

• 6

• 8

What do your valves do?

• They keep blood flowing in one direction

• They open and shut when your heart pumps

• They make the sound of your pulse

Is your heart made of voluntary or involuntary

muscle?

• Voluntary

• Involuntary

What is the difference between veins and

arteries?

• Veins travel away from the heart, arteries

  travel towards the heart

• Veins are blue, arteries are red

• Arteries travel away from the heart, veins travel towards the heart

What part of your blood picks up oxygen and drops

off carbon dioxide?

• Plasma

• Platlets

• Red blood cells

Why does your heart beat faster when you

exercise?

• Your body needs more oxygen

• You body needs more carbon dioxide

What is hemoglobin?

• It’s on the surface of red blood cells and helps

  pick up oxygen

• It’s on the surface of white blood cells and

  helps pick up oxygen

Tags

NGSS.MS-LS3-1

What does the trachea do?

• Carries food to the stomach

• Carries air to the lungs

• Carries air to your heart

What is the watery part of your blood your cells

are floating in?

• Plasma

• Platlets

• Red Blood Cells