Changes

Bones - Anatomy & Physiology (view source)

636 bytes added , 12:43, 10 July 2008

Line 18: Line 18:

==Composition of Bone==

+

*Cortical (compact) bone

+

**Sheath covers external surface of long bone, thicker in shaft and thins over epiphyses

+

**Comprised of thin lamallae in a series of concentric tubes arranged around small central canals (collectively known as an '''osteone''')

+

*Cancellous (spongy) bone

+

**Forms the hematopoeitic center of epiphyses

+

*Medullary Cavity and Cancellous Interstitium: bone marrow storage and production

+

**Red Marrow: richly vascularized, gelatinous tissue with hematopoeitic properties found abundantly in young animals

+

**Yellow Marrow: fat infiltration converts red marrow to yellow, causing hematopoeitic properties to dwindle

==Biomechanics of Bone==

==Structure and Function of Cartilage==

1,351

edits