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Cytology of the Testis and Intrinsic Control Mechanisms-Chapter 18

Kerr, J.B. ; Loveland, K.L. ; O'Bryan, M.K. ; de Kretser, D.M.

Knobil and Neill's Physiology of Reproduction, Chapter 18, pp.827-947

ISBN: 978-0-12-515400-0 ; DOI: 10.1016/B978-012515400-0/50023-3

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  • Nhan đề:
    Cytology of the Testis and Intrinsic Control Mechanisms-Chapter 18
  • Tác giả: Kerr, J.B. ; Loveland, K.L. ; O'Bryan, M.K. ; de Kretser, D.M.
  • Là 1 phần của: Knobil and Neill's Physiology of Reproduction, Chapter 18, pp.827-947
  • Mô tả: The testis is surrounded by a dense connective tissue capsule, the tunica albuginea, which is covered on its anterior and lateral aspects with the remnants of the process vaginalis, forming the visceral and parietal layers of the tunica vaginalis. From the internal surface of the tunica albuginea, connective tissue septa extend posteriorly toward a region of the testis termed the mediastinum. This area consists of connective tissue within which an anastomotic network of ducts can be identified as the rete testis. The inner surface of the tunica albuginea is apposed to loose highly vascular connective tissue sometimes termed the tunica vasculosa. The degree of lobulation of the testis varies between species, and within these lobules lie the seminiferous tubules within which spermatogenesis occurs. The tubules extend as loops from the mediastinum testis, both ends of each loop communicating via single straight tubules, the tubuli recti. In most mammals, this simple arrangement is obscured in the adult testis, because the tubule forming each loop becomes extensively folded, thereby extending its surface area. The organization of the intertubular tissue also varies dramatically between species, but it contains the blood vessels, lymphatics, and nerve fibers. The Leydig cells are scattered in groups in the intertubular tissue in relation to the vasculature and the lamina propria of the seminiferous tubules, the outer layers of which consist of modified smooth muscle cells termed myoid cells.
  • Nơi xuất bản: Elsevier Inc.
  • Năm xuất bản: 2006
  • Ngôn ngữ: English;German;French;Italian
  • Số nhận dạng: ISBN: 978-0-12-515400-0 ; DOI: 10.1016/B978-012515400-0/50023-3

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