estis 输出小管 生精小管 1)General structure 白膜 直精小管 鞘膜脏层 ① Capsule 鞘膜腔 附睾管 a. tunica vaginalis visceral laver -serosa b tunica albuginea: thick, DCT /mediastinum testis:albuginea became thicker at posterior aspect /septum: thin septa extend radiately from mediastinum testis to divided the parenchyma into lobule
Testis 1) General structure: ① Capsule: a. tunica vaginalis: visceral layer-serosa b. tunica albuginea: thick, DCT /mediastinum testis: albuginea became thicker at posterior aspect /septum: thin septa extend radiately from mediastinum testis to divided the parenchyma into lobule
② Lobule a. seminiferous tubule /highly coiled 30-70cm long . 150-250 mm in D /begin as free blind end run to posterior - become into straight tubule(tubules rectus → enter mediastinum testis→rete testis→ efferent duct→ connect with epididymal duct b. testicular interstitial tissue lct between seminiferous tubule
② Lobule a. seminiferous tubule: /highly coiled /30-70cm long, 150-250 mm in D /begin as free blind end →run to posterior →become into straight tubule(tubules rectus) →enter mediastinum testis→rete testis→efferent duct→connect with epididymal duct b. testicular interstitial tissue: LCT between seminiferous tubule
血骨 闻片细:≤ 女等相题 初级精母细 植原细胞 ⊙ 计:一子细胞 些2 2)Seminiferous tubule: /30-70cm \ long, 150 250um in D -specific stratified epithelium: spermatogenic epi (seminiferous epi spermatogenic cells ● Sertoli or supporting ce‖l myoid cell: under basal lamina
2) Seminiferous tubule: 30-70cm long, 150- 250um in D ---specific stratified epithelium: spermatogenic epi.(seminiferous epi) spermatogenic cells Sertoli or supporting cell myoid cell: under basal lamina
① Spermatogenic cell 5-8 layers 4 types of cells esis
① Spermatogenic cell: ---5-8 layers ---4 types of cells
a spermatogonium outerest layer, one layer --structure round, ellipsoid cel‖l /12um /round N, deep stained o
a. spermatogonium ---outerest layer, one layer ---structure: /round, ellipsoid cell /12um /round N, deep stained