Page 11 - Bones

GLOSSARY
Bones
- the hard tissue that forms the skeleton of a person or animal.

Skin
- the thin tissue covering the body of a person or animal

Skeleton
- the inner framework of bones and cartilage in vertebrate animals. Skeletons support the
body and protect softer body parts

Joints
- a place or point where two or more parts come together or are connected

Elbows
- the bend or joint between the upper arm and the lower arm

Knees
- the joint between the upper and lower parts of a human leg

Grow
- to become larger

Surface
- the outside limit or top layer of something

Periosteum
- a tough, fibrous membrane that covers all bones except at the joints

Bone marrow
- the soft fatty tissue at the core of most bones, where many types of blood cells form and
mature before entering the blood stream

Jawbone
- any of the bones that are part of the jaw, especially the lower one

Cartilage
- tough, white tissue that forms part of the skeleton of humans and other animals. Cartilage
is not as stiff as bone. Cartilage is found in the ear, nose, and joints

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