Bone Flashcards
What’s the functions of bone
1-provides attachment for muscles involved in locomotion
2-protect vital organs
3-bone consider as the main storage of calcium
4-contain Central cavity that contain bone marrow
5-hemopooetic organ
What’s the components of flat bone
Compact bone forms outer and inner layer called table,
A thin zone of spongy bone between them what’s called
Diploe
What’s the components of matrix of bone ?
1-organic compound (35%)
2-inorganic compound (65%)
Inorganic compounds what’s contain
Fluoride, magnesium, iron, calcium, phosphorus, bicarbonate,
What’s the name of compound that form ed by Calcium and phosphate
Hydroxyapatite crystal of bone
What’s the organic compounds found in matrix
1-collagen fibers
2-mucopolysaccharids
3-glycoproteins
What’s the glycoprotein Found in matrix of bone
Osteocalcin
Osteopontin
Osteonectin
The lamellae consist of ?
Collagen fibers and hydroxyapatite
The mucoprotein bind to
Hydroxyapatite crystal, and binds to osteoblast and osteoclast
What the origin of bone cell’s
Mesenchymal cells, and pericytes around capillaries
What’s the site’s of bone cell’s
Inner osteogenic layer of periosteum، and endosteum
Bone cell’s has basophilic cytoplasm true or false
True
What’s the functions of osteoblast
1-they are the bone forming cell’s
2-synthesized the major organic components of bone matrix
3-synthesize the minor organic compounds of the bone matrix
4-converted into osteocytes
Osteoclast derived from
Blood monocytes
