透明軟骨(Hyaline cartilage) | hyaline cartilage
A.chondrocyte(軟骨細胞)a.全身分布最多,目前研究最透徹的軟骨細胞b.細胞僅占軟骨的5%,其餘95%為基質。細胞大小不一,中央部分(成熟)細胞圓大而越往外側(新生)越扁平c.EM下可見胞質富含rER、GA→蛋白質製造有關fatdroplets、glycogens→此二者為inclusiond.通常埋在lacunae(凹陷)中,成群出現時稱為IsogenousGroup(cellnest)B.matrixa.由大量collagenfibrils(約40%)和無形態之groundsubstance構成b.此處的collagenfibrils直徑約20nm,為正常collagenfibrils的1/4至1/5,屬於typeⅡcollagenfiber,沒有band或是呈不規則狀...
A. chondrocyte(軟骨細胞) a. 全身分布最多,目前研究最透徹的軟骨細胞 b. 細胞僅占軟骨的5%,其餘95%為基質。細胞大小不一,中央部分(成熟)細胞圓大而越往外側(新生)越扁平 c. EM下可見胞質富含 rER、GA→蛋白質製造有關 fat droplets、glycogens→此二者為inclusion d. 通常埋在lacunae(凹陷)中,成群出現時稱為Isogenous Group(cell nest) B. matrix a. 由大量collagen fibrils(約40%)和無形態之ground substance構成 b. 此處的collagen fibrils直徑約20nm,為正常collagen fibrils的1/4至1/5,屬於type Ⅱ collagen fiber,沒有band或是呈不規則狀 c. H-E stain下看不見collagen fibrils原因有二: • 直徑太小,光學顯微鏡解像力不夠 • 其refractive index(折射指數)和amorphous(無形態)matrix相同,所以活體中hyaline cartilage清澈如玻璃 d. lacuna(複數lacunae)為埋著chondrocyte的空腔,由chondrocyte製造之基質堆在外圍形成。其中各成分會互相結合變硬,但chondrocyte本身還是軟的所以做切片時容易掉出來 e. cartilage capsule/capsular matrix(Cap,軟骨囊) 最接近chondrocyte的濃染部分(H-E stain下細胞周邊basophilic程度強),因為含有高濃度sulfated proteoglycans、hyaluronan、glycoproteins、biglycan等酸性物質 f. territorial matrix(TM,領域基質) 在isogenous group細胞間,比cartilage capsule 的basophilic弱的區域 g. interterritorial matrix(ITM,領域間基質) 不同群IG之間的matrix,basophilic程度為三者最弱 C. perichondrium(軟骨膜) a. 圍繞在cartilage外的dense irregular ...取得本站獨家住宿推薦 15%OFF 訂房優惠
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Hyaline cartilage | hyaline cartilage
Cartilage | hyaline cartilage
Light micrograph of hyaline cartilage showing chondrocytes and organelles, lacunae and matrix. Identifiers. MeSH · D002356 · TA · A02.0.00.005 · FMA · 71500 · Anatomical terminology. [edit on Wikidata]. Cartilage Read More
透明軟骨(Hyaline cartilage) | hyaline cartilage
其refractive index(折射指數)和amorphous(無形態)matrix相同,所以活體中hyaline cartilage清澈如玻璃 d. lacuna(複數lacunae)為埋著chondrocyte的空腔, ... Read More
Hyaline Cartilage | hyaline cartilage
Hyaline cartilage is characteristically imaged as an anechoic, homogeneous, curved band lining the bony profile and having two sharp, continuous, and regular ... Read More
Cartilage | hyaline cartilage
Cartilage: The three types of cartilage. There are three types of cartilage: Hyaline - most common, found in the ribs, nose, larynx, trachea. Is a precursor of bone. Read More
Hyaline Cartilage: Definition, Function | hyaline cartilage
Hyaline cartilage is a type of connective tissue found in areas such as the nose, ears, and trachea of the human body. The word hyaline means “glass-like”, and ... Read More
Hyaline cartilage | hyaline cartilage
In cartilage. Hyaline cartilage is the most widespread and is the type that makes up the embryonic skeleton. It persists in human adults at the ends of bones in ... Read More
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