the male reproductive system. the testis spermatogensis and spermiogenesis
TRANSCRIPT
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The Male Reproductive System
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The Testis
Spermatogensis and spermiogenesis
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Low Magnification of the entire testis
TA – Tunica Albuginea
E – Epididymis
RT – Rete Testis
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Low magnification of seminiferous tubules and interstitial cells
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Seminiferous Tubules
Primary Spermatocytes
Sperm
Spermatids
Sperm
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Seminiferous Tubules
Sertoli Cells
Spermatogonia
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Seminiferous Tubule
Primary spermatocytes
Spermatids
Arrow – sertoli cell
Sperm
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SEM of a seminiferous tubule
Sg, spermatogonia; Sc, spermatocytes; Se, Sertoli cells; Ta, sperm tails
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Diagram of Spermiogenesis
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TEM of developing sperm embedded in a sertoli cell
Sertoli Cell
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TEM of developing sperm head
AC – acrosome; PM – plasma membrane
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TEM of developing sperm midpiece
Mi – mitochondria; He – head; Cp – centriole; Cf/Pf – microtubules of flagellum
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TEM of crossections through sperm tails
Note the 9 + 2 arrangement of microtubules
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SEM of a mature sperm cell
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The Testis
Sertoli Cells and Interstitial Cells
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Seminiferous tubules with Sertoli Cells
(Arrows)
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TEM of sertoli cells (S and St labeled cells)
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Interstitial or Leydig Cells (arrows)
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Leydig Cells
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Male Tubular System
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Low magnification – The entire testis
Epididymis
Seminiferous tubules
Rete Testis
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Low maginfication of the Rete Testis
Ductili Efferentes
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Ductili Efferentes
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Ductili Efferentes Ductus Epididymis
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The Epididymis – pseudostratified with stereo cilia
Smooth Muscle
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The Ductus Deferens or Vas Deferens
Smooth Muscle
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SEM of the Vas Deferens
Ep – epithelium; LP – lamina propria; SM – smooth muscle; Ad - adventitia
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Lining of the Vas Deferens
Pseudostartified columnar with stereo cilia
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Low magnification of the Spermatic Cord with the Ductus Deferens (DD)
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Associated Glands
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Low magnification of the entire Seminal Vesicle
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Seminal Vesicle
Smooth Muscle
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Epithelial lining of the Seminal Vesicle
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Low magnification of the Prostate Gland
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Low magnification of the Prostate Gland with concretions
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High magnification of the Prostate Gland with concretions
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The Penis