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Seminiferous tubule in cross-section (large tubular structure – center of image) with sperm (black, tiny, ovoid bodies furthest from the outer edge of the tubular structure). H&E stain . 1: Testicular septa
Sertoli's idealised drawing illustrating a cross section of a seminiferous tubule. (1878) Enrico Sertoli (June 6, 1842, Sondrio – January 28, 1910, Sondrio) was an Italian physiologist, histologist, anatomist, biologic chemist, physician, teacher, and inventor. He is remembered for his discovery regarding the branched cells of seminiferous ...
Histological section through testicular parenchyma of a boar. 1 Lumen of convoluted part of the seminiferous tubules, 2 spermatids, 3 spermatocytes, 4 spermatogonia, 5 Sertoli cell, 6 myofibroblasts, 7 Leydig cells, 8 capillaries
Cross-section of a seminiferous tubule of the testis of a rat (250x) The function of Sertoli cells in the Amniota and Anamniota is the same, but they have slightly different properties when compared to each other. Anamnionts (fish and amphibians) employ cystic spermatogenesis in order to produce sperm cells. [22]
Within the seminiferous tubules, the germ cells develop into spermatogonia, spermatocytes, spermatids and spermatozoa through the process of spermatogenesis. The gametes contain DNA for fertilization of an ovum. [7] Sertoli cells – the true epithelium of the seminiferous epithelium, critical for the support of germ cell development into ...
Cross section of the epithelium of a seminiferous tubule showing various stages of spermatocyte development Scheme showing analogies in the process of maturation of the ovum and the development of the spermatids (young spermatozoa). Spermatidogenesis is the creation of spermatids from secondary spermatocytes during spermatogenesis.
The walls of seminiferous tubules are lined with primitive germ layer cells and by Sertoli cells. [1] The barrier is formed by tight junctions, adherens junctions and gap junctions between the Sertoli cells, which are sustentacular cells (supporting cells) of the seminiferous tubules, and divides the seminiferous tubule into a basal compartment (outer side of the tubule, in contact with blood ...
The seminal tract is a part of the male reproductive system and consists of seminiferous tubules (tubuli seminiferi recti, rete testis, efferent ducts), epididymides , Vas deferens and ejaculatory ducts.