Ebook Histology text and atlas: Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Histology text and atlas: Part 2
Ebook Histology text and atlas: Part 2
Chapter? Bone S3Fo nil a t io n 0 f Prim a i y Ce nt IV of Os s if ica t io n•Osteoprogenitor cells of perichondrium form periosteal bud, which consis Ebook Histology text and atlas: Part 2sts of blood capillaries, osteoprogenitor cells ami osteoclasts (Fig 7.13d).•1 c periosteal bud excavates through the bone collar and erodes (he wall of primary areolae: the primary areolae fuse and form larger spaces known as secondary areolae (Fig. 7.13e).•T e space gets filed with primitive bone Ebook Histology text and atlas: Part 2marrow cells•Osteoblasts form osteoid on the surface of the calciicd cartilage matrix, and the osteoid gels calci-f ed, forming trabeculae of spongy bEbook Histology text and atlas: Part 2
one. T.ater. the calcifed cartilage matrix present in the core of the trabeculae is removed by osteoclasts, giving r ise to inarm e trabeculae of the Chapter? Bone S3Fo nil a t io n 0 f Prim a i y Ce nt IV of Os s if ica t io n•Osteoprogenitor cells of perichondrium form periosteal bud, which consis Ebook Histology text and atlas: Part 2r processes occur in the cartilage close to the shaft, resulting in formation of bone towards the epiphysis.Secondary Centres of Ossification•After birth, new■centres of ossif cation, secondary OSS1T cation centres, appear in the ends of long bones (Fig. 7.13f).•T e cartilage of the epiphyses underg Ebook Histology text and atlas: Part 2oes the same sequence of events as in the diaphysis. In the secondary centre, the cartilage growth and subsequent ossifcation spreads out in all direcEbook Histology text and atlas: Part 2
tions (Fig. 7.13f).•Entire cartilage is replaced by bone except in two regions: at rhe free end. which remains as articular cartilage, and between theChapter? Bone S3Fo nil a t io n 0 f Prim a i y Ce nt IV of Os s if ica t io n•Osteoprogenitor cells of perichondrium form periosteal bud, which consis Ebook Histology text and atlas: Part 2al section of a growing hyaline cartilage, (h) As cartilage increases in size, chondrocytes mature and enlarge towards the centre ol'thc shaft, (continued)S4 Histology:*ĩéxl and Allas(c)BlondPenn MS urnPcTKtileul hunt:colln rPeniKlSIll hudPiiaiaiy areolaeId)Figure 7.13 (conlinucd) (c) Formation ol'p Ebook Histology text and atlas: Part 2erioslcal hone collar and primary areolae. On lhe right side, note lhe newly formed cartilage ul both ends as cartilage continues to grow in length, (Ebook Histology text and atlas: Part 2
d) Periosteal bud eroding The wall of primary areola (continued)https://khothuvien.cori!Chapter? Bone 85OsteoidSecondary ,ỉre»l:iPrimary centre of ossChapter? Bone S3Fo nil a t io n 0 f Prim a i y Ce nt IV of Os s if ica t io n•Osteoprogenitor cells of perichondrium form periosteal bud, which consis Ebook Histology text and atlas: Part 2he primary centre oi’ossif cal ion. (!') Diagram showing expanding hone marrow and uppeanincc ol’the secondary ossil'calkni cenlie. (continued)Chapter? Bone S3Fo nil a t io n 0 f Prim a i y Ce nt IV of Os s if ica t io n•Osteoprogenitor cells of perichondrium form periosteal bud, which consisGọi ngay
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