unit 3 lesson 1 part 1

What is the skeletal system?

• A system of organs that help you breathe

• A system of nerves that send signals to the brain

• A system of bones that give your body shape

• A system of muscles that help you move

How many bones are there in the human body?

• Less than 100

• Exactly 100

• Around 150

• More than 200

What is the name of the set of bones that protect the brain?

• Spine

• Vertebrae

• Skull

• Cranium

How many bones are there in the human skull?

• 40

• 22

• 10

• 30

What is the function of the skull?

• To help you hear

• To help you breathe

• To protect the brain

• To help you see

What is the name of the bone at the base of your neck?

• Spine

• Vertebrae

• Skull

• Cranium

What is the spinal column made up of?

• Organs

• Muscles

• Nerves

• Bones

How many smaller bones are stacked one on top of another in the spinal column?

• Less than 10

• Exactly 10

• Around 20

• More than 30

What do the vertebrae protect?

• The lungs

• The heart

• The spinal cord

• The brain

What is the function of the spinal cord?

• To help you see

• To deliver nerve signals to and from the brain

• To help you breathe

• To protect the brain