Anatomy of a Long Bone

Question 1

Diaphysis

Answer 1

Shaft/body of the bone. It is a hollow cylinder with walls of compact bone.

Question 2

Epiphyses

Answer 2

The extremities (ends) of the bone which is filled with red marrow.

Question 3

Metaphysis

Answer 3

The region where the Dyaphysis joins the Epiphysis. This includes the Epiphyseal plate.

Question 4

Epiphyseal Plate

Answer 4

A region of thick hyaline cartilage, also known as the growth plate.

Question 5

Epiphyseal Line

Answer 5

The ossified epiphyseal plate after bone growth has ceased.

Question 6

Articular Cartilage

Answer 6

The thin layer of hyaline cartilage covering the epiphysis in the joint.

Question 7

Periosteum

Answer 7

Fibrous connective tissue (CT) on the surface of the bone, except at articular surfaces. Essential for growth, repair and nutrition. Also necessary for the attachment of ligaments and tendons.

Question 8

Medullary/marrow cavity

Answer 8

The space within the diaphysis containing red or yellow marrow.

Question 9

Endosteum

Answer 9

Layer of osteoblasts lining medullary cavity, contains scattered ostesclasts.