Osseous Tissue

6 Osseous tissue skeletal system + carillages, Ligaments & other connective lissues kevino cheap desc functions Shape classification Sport bleedt Bone tissue Dense of agen Fibers) Supportive -osteon- unit of dense of compact bone tissue? bome is made at many units of ins ostencytesim Characteristics Latinon, (con to noller/central Cannal les Central (anal contains blood vesse Spongy bone Structure Nesundum cis (Always present in connective lase produce osteoblasts Lamell mатри Perforating Canals Pertendicular to bane Surface Carry binnd vt into deep bonlin Coralcul (connect to Central Canal spongy bare Lacks by amur Bone development Ossification (2 kinds) Endocrondal begans al Primary cocification center (develops leside hydline carillage) andrian Covering enlanges, che reduced begine to calcifyas is ocytes diel blood vessels grow ntar edge of cartilage. Perichondrium begins is conver diaphysis becomes covered in Surface/superficial bene blood vessels Pereirale shest of Carlilage/cenirdi region. Fibroblasils late ostoskiasis & shari proditing spongy base in core of cartilage (rimary where base production happers, bare serwalion soveads along ossificalion cenier) Shast towards both ends of cartilage model Remedeling continues, Creating marow/medutiary casing (very visible in Bone development Intramembranous/dermal ossification soccurs in dermis. Produces dermal bones such as mandible clavicles 5 Wain sleps in utero CPPlysis eventually become Filed with spongy bome Melasis (collage filed region coiled "epiphysial corvilage) or growth plate separate consepsis & diaphysis wees mesyncduymal cels difierenliste inte esleoblarlsb secret ostenid becomes mineralised cot sall farming bone mairi Ossilication continues some osoblasis become trupped in pockets then dirverentiate lato ostencyles. Developing bone grows outward from singa murebone (coepid) new cartilage is seduced At Puberly the rate of sipnysia consiliase slows while role of osteoblasi octivity accelerates therefore, esphysial caritage geissamover and revenically sappears (casing a mari inis is called esiphisial closure esbiphysial Lien after ges Competit interstitial growth-growth in length Stages 6-7 Secondary ossification ceniers develop Epishysial closure Completion of physial growth dih of ephysiol carillas reveals siming of endockendra ossificalien Domains alier epifisial Clevere Osteopenia osteoporosis Former location of epiphysial cartilage is vissible on xtaue assification centers on solcules Bleed easy begin to branch within the region gow between soicules bone growth continuts (since (muirients are available) spicules inlerconnect and and trap blood vessels inside bent. Colled deposition of bene by osteoblasts close to blood vessels results in spongy baré ( blood vessels wewing through Bemodeling around blend wesels preduce osteons in comsiact bore osteoblacks on bane surface became periosjeum * bone remodeling occurs throughout life(contHouns Iruectives in bove maininance by recyclingtimewing matrix levelves asteccyles,coblasts sienciasks bones wealien. If apposition predominales, bones strenglinen cxcersise mwes boves sirenger, mineral recycling lous bures to adapt to stress. Therefore, stressed benes become hacken/siranger wahl bearing exercise stimulakes osterialass Bone degradates quickly. 1/3 of kene mass can be losk in a few weeks of anaculty hormones/Trinerals growth hormone thyroxine slimmutade growth Esiran/eskosane stimulate estecblasis Porolhyroid kennone & calcilanin mainlain calciom ion havershasis Calcium Phosphorous Required in die 4 as well as soon of magresion, fieride, iron & Calcirisi truan in kidneys (active lilasin D made from Dyin جا essential for calcium phosphake toe bestblion in digestive tract Sleleton stages ex of body's calcium (oller mntrols) si dan mineral vital wony prysiological protses Pih. simulate colenciasi actilylici increasing intestinal obronblion of calciom by councing crecibol calcited secretion(kidneys) + decreasing corcium excelion (ide Csees in thyroid: secrete cavilanin inhibits avlenciasi scully increubies calcium excrtilioni nedices calcitrol secretion(cry) tecreases intestinal abode of Calcium frachiry neowind bone may be sighwa