Human Body Lesson 2

__________ is the place where two bones meet.

• cartilage

• cell

• joint

• muscle

______ is a flexible, rubbery material that covers the ends of bones.

• cartilage

• muscle

• cell

• organ

_______ are different tissues that work together.

• skeletal system

• joints

• cartilage

• organs

________ are organs that move the body parts.

• muscles

• skeletal system

• cells

• organs

______ are the smallest units of a living thing.

• joints

• cells

• skeletal systems

• organs

The ______ is the system that supports, moves, and protects the body.

• joint

• muscle

• cartilage

• skeletal system

Muscles work ______

• not that much

• in pairs

• in threes

• in rhythm with each other

Most muscles are attached to your _______.

• bones

• ribs

• stomach

• cartilage

Humans have about ______ bones in their body.

• 3

• 2

• 206

• 220

Without the skeletal system, you would not be able to ______.

• lay down

• sing

• sit

• stand