Topic 8, Lesson 2

How many bones make up an adult body?

Which are the main functions of the skeletal system? PICK TWO

• It supports your body and gives it shape

• It pumps blood through the body

• It keeps harmful germs out of your body

• It protects your internal organs

What internal organ does your skull protect?

• heart

• kidney

• lungs

• brain

What internal organs do the rib cage protect?

• heart

• skin

• lungs

• brain

TRUE OR FALSE: Bones are made up of both living tissue and nonliving materials.

• true

• false

What is the nonliving material that make up your bones called?

• liver

• minerals

• rocks

• skin

What is an example of a mineral that important for strong, healthy bones?

• oxygen

• calcium

• system

• cartilage

Bones contain a bendable material called _______________

• organs

• minerals

• cartilage

• skin

Which of the following is NOT TRUE about cartilage?

• Cartilage acts as a cushion between bones that meet.

• Cartilage can bend.

• Cartilage can be found in your ears and nose.

• Cartilage is harder than bone.

TRUE OR FALSE: Bones can move on their own.

• True

• False