高等教学大一英语下PPT课件:05-cartilage-and-bone.ppt(无音视频)
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- 高等 教学 大一 英语 PPT 课件 05 cartilage and bone
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1、cartilagecartilagen Cartilage tissuel Chondrocytel Intercelluar substances FiberGround substanceCollagen fibril hyaline cartilageElastic fiber elastic cartilageCollagen fiber fibro-cartilagen perichondrium Conncective tissue, containg chondroblasts(1) Chondrocyten Location: at the cartilage lacunaen
2、 Structure: LM: clear nucleoli, basophilic cytoplasm EM: abundant RER and Goli complexn Function: synthesize both the ground substance and fibers divide to form clusters of chondrocytes (isogenous group)Interstitial growth(2) Intercellular substanceGround substance: acid sulphated glycoproteins baso
3、philicFibers(3) PerichondriumConncective tissue, containg chondroblastsChondrocytedifferenciateAppositional growthProtection, provide nutrition, Hyaline cartilageThe intercellular substance is amorphous: the ground substance and collagen (type II collagen fibril )have similar refractive indices. Car
4、tilage capsuleIsogenous groupPerichondriumNumerous bundles of elastic fibers in the cartilage matrixElastic cartilage numerous bundles of collagen fibers in the cartilage matrix FibrocartilageBoneOsseous tissueExtracellular matrixOrganic InorganicCellsOsteoprogenitor / osteogenic cellosteoblastosteo
5、cyteosteoclastOsteumBone marrow Functions: support and protection participate the metabolism of calcium and phosphate ions(bone matrix)Red marrow (active)Yellow marrow (inactive) Bone matrixOrganic componentCollagen fibersGround substance: Glycoproteins, etc.Inorganic component:bone mineral , hydrox
6、yapatite crystals(Ca10PO4 6OH2) Collagen fibers lie parallel one another in the ground substance with the bone mineral deposition. osseous tissue(osteoid)Bone lamellaDiagram of the osseous tissueosteoblastosteoprogenitorosteocyteosteoclastBone lacunaeBone lamella 1、osteoprogenitor /osteogenic cell L
7、ocation:surface of the osseous tissue Functions:bone growth continuous remodelling repair of bone fractures Cells2、osteoblast Location:surface of the osseous tissue LM: basophilic cytoplasm, pale stained nuclear with a prominent nucleolus EM: abundant RER and Golgi C. Functions: synthesize the bone
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