The Skeletal System

The number of bones in an adult human

• 602

• 206

• 402

• 600

The main organs of the skeletal system

• joints and tendons

• blood and joints

• bones and heart

• bones and joints

An endoskeleton is on the

• inside

• outside

An exoskeleton is on the

• inside

• outside

Humans have an

• endoskeleton

• exoskeleton

Red blood cells are produced in the

• stomach

• brain

• bone marrow

• muscles

The skeletal system works with the ____ system to allow for movement.

• respiratory

• circulatory

• muscular

• endocrine

The interior of the bone can store -

• minerals

• iron

• blood

• vitamin c

The cranium is a common name for the -

• skin

• vertebrae

• skull

• kneecap

A newborn baby has more bones than an adult.

• true

• false