Bone/osseus Tissue test 1 Flashcards
What lives in membrane around bone; does cell division on the bone surface ?
Osteoprogenerator
What is osseus tissue ?
Type of connective tissue
What is formed from 1 daughter cell when osteoprogenerator cells divide; secrete the matrix?
Osteoblasts
What is trapped in the bone matrix in lacuna (holes); job is to keep the bone healthy mature osteoblasts?
Osteocytes
What comes from the immune system; live in the bone membrane surface; job is to dissolve bone ?
Osteoclasts
What is bone matrix ?
Basically cartilage with mineral salts to harden it. Trucalcium phosphate (major mineral), calcium carbonate, magnesium hydroxide also sulfate and fluoride
What forms the surface of all bones and most of mass of long bones? Solid bone with little space, based around units called osteons.
Compact bone (dense bone)
What is an osteon ?
Cylinder made of concentric rings of bone; hollow at center
What is the term for canals in sides of bone link up to central canals contains blood vessels?
Perforating canals
What is the term for the arches of bone that fill at spaces between osteons ?
Interstitial lamella
What is the term for arches of bone tissue at bone surface; make the bone smooth?
Circumferential lamella
What is the term for the hole at center of osteon for blood vessels ?
Central canal
What is the term for circles of bone that form osteon ?
Concentric lamallae
What is lacuna ?
Holes where lamellae meet osteocytes live here
What is the term for cracks radiating from lacuna; contain projections from osteocytes?
Canaliculi