madison c-2 human body systems

a blood vessel that carries blood back to the heart

What substance are nails made of

Which organ belongs to the digestive system?

Skin, hair, and nails are part of what system?

How do the kidneys help your body

What is the name of the substance that gives skin and hair its pigment

The bone that protects the brain is called

What is the biggest part of the human brain

What is the job of the digestive system

The outside layer of skin on the human body is called the

The two holes in your nose are called

The primary function of this system is to help you fight germs

What are the three kinds of blood vessels

Why does your heart beat faster when you run?

The right lung is _ than the left lung.

The primary function of the system is to support and protect the body

These two body systems work together to allow a person to move, talk, and run.

Whats the purpose of the respiratory system?

what is the purpose of the nervous system

A muscle that tightens and loosens when you breathe

The bones that make up your spine are called what