Circulatory System

Your heart is about as big as your _____.

Which type of cells carry food, oxygen, and waste throughout the body?

• Red blood cells

• White blood cells

• Platelets

• Plasma

Tags

NGSS.MS-LS1-3

Which type of cell helps your body fight off infections?

• White blood cells

• Red blood cells

• Platelets

• Plasma

The liquid part of your blood is (are) called ________.

Which part of your blood helps clot your blood and form a scab when you cut yourself?

• Platelets

• White blood cells

• Red blood cells

• Plasma

Approximately how much blood is in your body?

• 5 liters

• 10 liters

• 1 liter

• 15 liters

__________ are the largest blood vessels in the human body and carry's blood away from the heart.

Which type of blood vessel returns blood from the body back to the heart?

• Veins

• Arteries

• Capillaries

Which of the following types of blood vessels are the smallest?

• Capillaries

• Veins

• Arteries

Which type of exercise would likely cause your heart rate to be the highest?

• Running

• Walking

• Lifting Weights

• Playing video games