What is the main organ of the Central Nervous System?

• Heart

• Lungs

• Brain

• Spinal Cord

Which of these ISN'T a function of the Skeletal System?

• To provide blood cells

• To provide protection

• To provide a framework for movement

• To provide muscle cells

About how many muscles are there in the human body?

• 200

• 400

• 600

• 800

Everything in the human body is made up of what tiny, microscopic parts?

• Organisms

• Cells

• Bytes

• Bacteria

The connection between two or more nerves is called a synapse.

• True

• False

Which of these is not a category of muscle?

• Skeletal

• Cardiac

• Smooth

• Bumpy

What do we call a group of organs that all work together to accomplish the same function?

• Organisms

• Skin

• Body Systems

• Organelle

What is the longest and strongest bone in the human body?

• Tongue

• Gluteus Maximus

• Femur

• Humerus

Groups of cells join together to create tissue.

• True

• False

How many bones are there in one of your hands?

• 21

• 23

• 25

• 27