BCP 102 GD: Bones 4 (F-J)

Our teeth have the same crystal, hydroxyapatite, as our bones do.

Dentin is the hardest part to the tooth. It is the outer coating of every tooth

Teeth have blood vessels and nerves running into a “cave” in the inside of the tooth.

Which have greater beauty in their smiles? A chimp or a person. Think hard! If you miss this one you are in bad shape!

If DNA wasn’t damaged, our bones could last for a million years because they are continually being remade.

Within a few hours after a bone is broken, special cells begin to clean bone fragments and kill bacteria.

The word phagocyte means “bones that eat” in Greek.

In a broken bone, a soft callus made mostly of cellulose is created around the fracture by another special group of cells.

Special cells–the osteoclasts–mold the new bone to its original shape

Woven bone is produced when “bone” is made rapidly. This woven bone is later replaced by much stronger compact bone.

Bone with lamellae is horribly disorganized.

Laying down collagen fibers correctly in bone is a super-speedy job

The osteoblasts give off bags which break. Then crystals gradually grow into place.