Human Body Review for Test

How many bones does an adult have?

• 206

• 10

• 350

The skeletal system works with the muscles to help our bodies move.

• True

• False

Which one of these is a bone in your body?

• stomach

• brain

• sternum

• cardiac muscle

What are the two main types of muscles?

• cardiac and skeletal

• involuntary and voluntary

• tendons and joints

The largest organ in the body is the _________.

• liver

• brain

• backbone

• skin

The three different kinds of muscle tissue are skeletal, smooth, and tendons.

• True

• False

Our hair grows out of the ____________.

• epidermis

• dermis

• tops of our heads

Our sweat glands help control our ____________.

• water

• sweat

• body temperature

What is the top layer of skin called?

• dermis

• epidermis

• oil glands

Why is bone marrow important?

• It makes red blood cells and stores fat for the body.

• It's not important.

• It makes the bones lighter.