Looking inside bone

vocab

Spongy Bone

A very porous type of bone that contains red bone marrow. It is usually located near the ends of long bones surrounded by compact bone.

compact bone

Forms the hard outer shell of bones. Contains tiny passages for veins, nerves, or bone repairing cells

Red Bone Marrow

Consists of mainly red blood cells.

Osteoblasts

A cell that secretes the matrix for bone formation.

Osteoclasts

A type of bone cell that breaks down bone tissue.

Epiphysis

End point of a long bone that grows separately from the shaft

Diaphysis

Shaft, central part of the long bone

Cartilage

At the ends of each growing bone

Periosteum

Dense layer of connective tissue covering bones, except at joints

Medullary Cavity

Central cavity of bone where bone marrow is located

Haversian Canal

Surround blood vessels and nerve cells throughout bones and communicate with bone cells

Osteocyte

A bone cell, formed when an osteoblast becomes embedded in the matrix it has secreted.

Canaliculi

a small channel or duct