Chapter 6

Bones

100

A group of bones forming the frame of the body is called the ___.

skeleton

200

The 33 bones in the back that protect the spinal cord are the

Vertebrae

300

Bones have a hard outer layer and then a layer of ___ bone

spongy

400

Some bones are filled with soft, jelly-like material that produces new blood cells. This material is called

marrow

Muscles

100

Tissue that moves a part of the human body is called a ___.

muscle

200

When a skeletal muscle contracts, it pulls on a ____ to move the bone.

Tendon

300

What minerals make your bones strong and hard?

Calcium

400

An injury to the ligaments and blood vessels that happens when a joint is twisted too far is called a ___.

Sprain

Joints

100

An immovable joint can be found in the ___

skull

200

A joint that allows only back and forth movement is a ____ joint.

hinge

300

A joint that allows side to side movement is a ____ joint.

pivot

400

A joint that allows movement in many directions is a ___ joint.

ball and socket