6.1 POJA-L2662+La0185
+La0186.
Seminiferous tubules with spermatogenesis
6.1 POJA-L2662+La0185+La0186
Title: Seminiferous tubules with spermatogenesis
Description:
(A) Stain hematoxylin-eosin, human. (B) Stain iron hematoxylin-eosin, human. (C) Stain methylene blue, mouse.
The survey in (A) shows cross-sections through the convoluted seminiferous tubules (1) and the interstitial cells (2) among which the Leydig cells. The wall of the tubules is called lamina propria limitans (B, 7) and consists of some myofibroblast cells with basement membrane material creating a blood-testis barrier.
Sertoli cells (B, C, 3) are supportive cells for the differentiating spermatocytes and are easy recognizable by their pale nucleus and a distinct nucleolus.
Spermatocytes (B, C, 4) usually display clearly condensed chromatin in the nucleus. The spermatogonia (B, C, 5) are found at the base of the wall of the tubules. The maturing spermatozoa (B, C 6) are sticking with their heads downwards in the cytoplasm of the Sertoli cells. The arrow in (C) points to a mitotic metaphase cell, (second meiotic division). Mature, released sperm with flagella are found in the lumen (C, 8).
Keywords/Mesh: testis, seminiferous tubule, spermatogenesis, spermiogenesis, spermatogonium, spermatozoon, spermatocyte, Sertoli cell, histology, POJA collection
Title: Seminiferous tubules with spermatogenesis
Description:
(A) Stain hematoxylin-eosin, human. (B) Stain iron hematoxylin-eosin, human. (C) Stain methylene blue, mouse.
The survey in (A) shows cross-sections through the convoluted seminiferous tubules (1) and the interstitial cells (2) among which the Leydig cells. The wall of the tubules is called lamina propria limitans (B, 7) and consists of some myofibroblast cells with basement membrane material creating a blood-testis barrier.
Sertoli cells (B, C, 3) are supportive cells for the differentiating spermatocytes and are easy recognizable by their pale nucleus and a distinct nucleolus.
Spermatocytes (B, C, 4) usually display clearly condensed chromatin in the nucleus. The spermatogonia (B, C, 5) are found at the base of the wall of the tubules. The maturing spermatozoa (B, C 6) are sticking with their heads downwards in the cytoplasm of the Sertoli cells. The arrow in (C) points to a mitotic metaphase cell, (second meiotic division). Mature, released sperm with flagella are found in the lumen (C, 8).
Keywords/Mesh: testis, seminiferous tubule, spermatogenesis, spermiogenesis, spermatogonium, spermatozoon, spermatocyte, Sertoli cell, histology, POJA collection