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Maxilla

upper jaw

Mandible

lower jaw

Scapula

shoulder blade

Clavicle

collarbone

Sternum

breastbone

Coccyx

tailbone

Humerus

,

radius

,

ulna

arm bones

Carpals

wrist bones

Phalanges

finger bones

Femur

,

tibia

,

fibula

leg bones

Patella

kneecap

Tarsals

foot and ankle bones

Phalanges

toe bones

Name That Bone

Sure, you can touch your kneecap, but can you point to your patella?

Check out the scientific terms for some of the bones in your body.

What’s inside Your Bones?

The bones in your body are living tissue. They are made mostly of calcium

and protein. To stay strong, bones need oxygen, vitamins, and minerals. A

good diet and plenty of exercise can help keep bones healthy and strong.

A bone is made up of several different parts.

Hard outer layer

The hard outer layer gives the bone

its strength. It is made of dense, compact bone.

Spongy inner layer

The spongy inner layer makes

the bone light. This same spongy material makes up the

ends of the bone.

Blood vessels

Blood vessels bring oxygen and other

nutrients to the bone.

Marrow cavity

The marrow cavity is the space in the

center of the bone. It contains bone marrow. The marrow

cavity is found only in long bones such as the leg and

arm bones.

Bone marrow

Bone marrow is a tissue that makes blood

cells. It is found in the marrow cavity of some bones.

Periosteum

The periosteum is a thin, tough layer that

covers the bone surface.

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