Skeletal System Breakdown 2 PDF

Skeletal System Breakdown topic: date: Basics content What is the skeletal system Theskeletalsystemprovidessupportprotection movement mineralstorage and blood...

Skeletal System Breakdown topic: date: Basics content What is the skeletal system Theskeletalsystemprovidessupportprotection movement mineralstorage and bloodcellproduction Functions support tea typo eh Protection sheildsandprotects organs Ex ribsprotectheart lungs Movement works withmuscles to move around Ex whenyou kick a ball yourFemur Tibia move and phosphorus for Higerage bonesstore calcium nerve and muscle functions L Bright red marrow in bonesproducesred white bloodcellsand platelets Bone Basics Compactbone dense outterpartof bone has osteonsfor nutrients and wasteexchange spongy bone foundat theendofbone lighterthandensebone absorbsshock has trabecular Bone Cells Osteoblasts buildsbonebymakingosteoidbonematrix theyarethebuilders andhealing osteoblastsworkwhenbonesaregrowing Osteocytes thatkeepsstructureofbonescorrect bone mature theyarelikethecaretakers monitorbonetheyalsotalk to other bones Osteoclasts eatawayboneto letcalciumintotheblood theyare like pacman  Skeletal System Breakdown topic: date: Anatomy of Bone content Bone Anatomy Diaphysis LONG BONE longpartshaft ofbone mostlycompactbone canhandleweightpressure Emphysis roundendofbone mostlyspongybone redbone marrow absorbsshock helpsjoints move Metaphysis wherediaphysis andepiphysismeet hasgrowthplateingrowingbones Med p hitterof diaphysis whereyellowmarrow Periosteum strongoutterlayerof bone isconnective tissue has lots of bloodvessels nerves andbone building cells like osteoblastsforgrowthrepair Endosteum thinlinninginsidemedullary cavity hasosteoclastsandosteoblasts to remodelbone BoneMarrow in spongybone makes redbloodcells Y Iidethemedullary cavity stores fat Endosteum liningof medullary cavity  Skeletal System Breakdown topic: date: Intramembranous Ossification content Bone Formation Intramembranous Ossification formsflatbones likethe skullandclavicle happens inembryonicstage fetus steps 1 DevelopmentofOssificationCenter mesenchymalcells inthemesenchym grouptogether thenthesecellsturnsinto osteoblasts 2 secretion and calcification ofost.eeErix y osteoblasts start to make osteoid calsium othermineralsareattedtotheosteoi L thiscalcifiestheosteoid 3 Formation of Trabecular inthemiddleoftheboneosteoid turnsinto ttfffEayer near the osteoblastsosteoid Calsium l mÉf compact 4 De Ñpm Bone y spongy calcifiedosteoidbecomescompactand WgtFffhdM 1Éf affff spongy bone thethickoutterlayer of osteoidturns into compact bone the.ir s ii i t EFEEE osteoblasts D v t qmeE vta.at  Skeletal System Breakdown topic: date: Endochondral Ossification content Bone Formation Endocondral Ossification 1 mesenchymal cells form hyaline cartilagemodel wrapped in perichondrium condrocytesalsoforminside 2h.phnotiatinin'turnsintoperiosteum osteoblastsfromperiosteumform a collarbonearound the diaphysis 3 getbiggerwhich triggers condrocytes calcification of the matrix around it causes nutrition to stop going to condrocytes which kills them this creates an emptycavity 4 bloodvesselsfromperiosteum invade with osteoblasts osteoclasts osteoblastsreplace left overcartilage osteoid which hardens into spongy bone while spongy bone is made osteoclasts eataway some spongy bone to make medullary cavity 5 secondary ossification centerforms at the epiphysis bloodvesselsinvade and osteoblasts make spongybone 6 Articularcartilagestays at the ends of bone for is hyaline tan stays cartilagebetween diaphysis epiphysis topic: date: Bone Growth content Increasing Bone Length Interstitial Growth Epiphyseal Plate condrocytes continue making cartilage at the same time osteoblasts are eating it awayandturning it intobone thegrowth of cartilage is makingthe bone longer and osteoblaststurn it into bone at the end ofadolesencecartilage growth slows osteoblasts turn it all into bone Increasing Bone Width Appositional Growth osteoblasts makebone one the outterlayer osteoclasts eatthe bonefromthe center inner layer thisis so themarrowcavitygetsbiggeras thebone growswider topic: date: Hormones Bones content Hormonal Bone Growth Bonegrowth is controlled by hormones hormones tell bones when to grow be strong and heal tell bones how to grow estrogen andtestosteronemake osteoblasts work harder Calcium calcuim is very important for bone health stored in bones hormones control calcium ParathyroidHormone pullscalciumfrombonesintobloodwhenthereisntenough Calcitonin putscalciuminboneswhentoomuchis in bones VitaminD helpsbodyabsorbcalcium fromfood Bonesreflectstresstheyencounter more stress on bone requires more bone to bemade inorder to provide moresupport topic: date: Fracture Repair content Bone Fracture Repair Steps afterfracture Hell g nipping hematoma bloodclotformsto stopbleeding prepairfor nextstage to granulated tissue 2 sofhaittE.hn I collegelinvitgratiitta Fibro cartilage tissue into softcallus iii ii.it iiiian bonycollar tohold piecestogether until ossification happens 4 BoneRemodeling osteoclasts eat away bonefragments meanwhile osteoblastsmakespongybone then turn it into compactbone lesssurface area meansquicker healing when there is less surface area there is more supportduring healingbecause it is faster is needed or mating p lossof bonedensity weakness inbonetissue spongybone of spineneckoffemurmostsusceptible Estrogen testosterone promotesosteoblastactivity slows osteoclast activity Women getsuddendecrease in estrogenmenopause Sexhormones maintain normalbonehealthand density Riskfactors of Osteoporosis lowbodyweight no exercize smoking hormonerelated conditions hyperthyroidism diabetes immobility topic: date: content Summary 1 typesofcartilageelastichyaline fibrocartilage 2 2wayscartilagegrows appositial interstitial 3 Bonesareorgansthatsfunctions rangefromsupport to makingbloodcells 4 Bonetissueis madeoforganic inorganic components 5 Boneclassifications a longbone b flat bone c shortbone d regular bone e sesamoid bone