OpenStax AnatPhys fig.27.5 - Spermatogenesis - English labels

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Spermatogenesis. (a) Mitosis of a spermatogonial stem cell involves a single cell division that results in two identical, diploid daughter cells (spermatogonia to primary spermatocyte). Meiosis has two rounds of cell division: primary spermatocyte to secondary spermatocyte, and then secondary spermatocyte to spermatid. This produces four haploid daughter cells (spermatids). (b) In this electron micrograph of a cross-section of a seminiferous tubule from a rat, the lumen is the light-shaded area in the center of the image. The location of the primary spermatocytes is near the basement membrane, and the early spermatids are approaching the lumen (tissue source: rat). EM × 900. (Micrograph provided by the Regents of University of Michigan Medical School © 2012). English labels. From OpenStax book 'Anatomy and Physiology', fig. 27.5.
Anatomical structures in item:
Colliculus inferior
Tubuli seminiferi contorti
Uploaded by: Jorn IJkhout Netherlands, Leiden – Leiden University Medical Center, Leiden University
Creator(s)/credit: OpenStax; Regents of U-M Medical School, UMich MedSchool
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OpenStax AnatPhys fig.27.5 - Spermatogenesis - English labels
Uploaded by: Jorn IJkhout
Institution: Netherlands, Leiden – Leiden University Medical Center, Leiden University
Creator(s)/credit: OpenStax; Regents of U-M Medical School, UMich MedSchool
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Spermatogenesis. (a) Mitosis of a spermatogonial stem cell involves a single cell division that results in two identical, diploid daughter cells (spermatogonia to primary spermatocyte). Meiosis has two rounds of cell division: primary spermatocyte to secondary spermatocyte, and then secondary spermatocyte to spermatid. This produces four haploid daughter cells (spermatids). (b) In this electron micrograph of a cross-section of a seminiferous tubule from a rat, the lumen is the light-shaded area in the center of the image. The location of the primary spermatocytes is near the basement membrane, and the early spermatids are approaching the lumen (tissue source: rat). EM × 900. (Micrograph provided by the Regents of University of Michigan Medical School © 2012). English labels. From OpenStax book 'Anatomy and Physiology', fig. 27.5.
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Anatomical structures in item
Colliculus inferior
Tubuli seminiferi contorti
Topics
Gross
Embryology
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OpenStax Anatomy & Physiology
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