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Ch. 5 Vocab

TermDefinition
What are the functions of the bone? 1. SUPPORT 2. PROTECTION 3. MOVEMENT 4. STORAGE 5. BLOOD CELL FORMATION
Classification of the bone (tissue and groups) - compact bone: dense & smooth, but under a microscope there are many tiny passages for nerves & blood vessels - spongy bone: spongy in appearance; many open spaces
What are the two subdivisions of the skeleton? - axial skeleton: trunk of the body - appendicular skeleton: attachments of the axial
proximal epiphysis - end of long bone closest to the point of attachment - composed of mostly spongy bone enclosed by a thin layer of compact bone
diaphysis - shaft of the long bone - composed of compact bone
distal epiphysis - end of long bone furthest from point of attachment - composed of mostly spongy bone enclosed by thin layer of compact bone
articular cartilage - covers external surface - made of hyaline (glassy, transparent) cartilage - decreases friction at joint surfaces
spongy bone - composed of small needle like pieces of bone and lots of open space - spongy look
epiphyseal line - remnant of the epiphyseal plate - seen in adult bones
periosteum - outside covering of the diaphysis - perforating (Sharpey's) fibers secure periosteum to underlying bone
compact bone - dense and looks smooth - under microscope there are many tiny passages for nerves and blood vessels
medullary cavity - cavity of the shaft, primarily a storage are for the adipose (fat) tissue
endosteum - a delicate connective tissue lining
yellow bone marrow - adipose (fat) tissue, stored in medullary cavity
perforating (Sharpey's) fibers - connective tissue fibers that secure the periosteum to the underlying bone
nutrient arteries - arteries used to give nutrients to the bone
Created by: emarroquin