the male reproductive system. the testis spermatogensis and spermiogenesis
Post on 29-Jan-2016
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The Male Reproductive System
The Testis
Spermatogensis and spermiogenesis
Low Magnification of the entire testis
TA – Tunica Albuginea
E – Epididymis
RT – Rete Testis
Low magnification of seminiferous tubules and interstitial cells
Seminiferous Tubules
Primary Spermatocytes
Sperm
Spermatids
Sperm
Seminiferous Tubules
Sertoli Cells
Spermatogonia
Seminiferous Tubule
Primary spermatocytes
Spermatids
Arrow – sertoli cell
Sperm
SEM of a seminiferous tubule
Sg, spermatogonia; Sc, spermatocytes; Se, Sertoli cells; Ta, sperm tails
Diagram of Spermiogenesis
TEM of developing sperm embedded in a sertoli cell
Sertoli Cell
TEM of developing sperm head
AC – acrosome; PM – plasma membrane
TEM of developing sperm midpiece
Mi – mitochondria; He – head; Cp – centriole; Cf/Pf – microtubules of flagellum
TEM of crossections through sperm tails
Note the 9 + 2 arrangement of microtubules
SEM of a mature sperm cell
The Testis
Sertoli Cells and Interstitial Cells
Seminiferous tubules with Sertoli Cells
(Arrows)
TEM of sertoli cells (S and St labeled cells)
Interstitial or Leydig Cells (arrows)
Leydig Cells
Male Tubular System
Low magnification – The entire testis
Epididymis
Seminiferous tubules
Rete Testis
Low maginfication of the Rete Testis
Ductili Efferentes
Ductili Efferentes
Ductili Efferentes Ductus Epididymis
The Epididymis – pseudostratified with stereo cilia
Smooth Muscle
The Ductus Deferens or Vas Deferens
Smooth Muscle
SEM of the Vas Deferens
Ep – epithelium; LP – lamina propria; SM – smooth muscle; Ad - adventitia
Lining of the Vas Deferens
Pseudostartified columnar with stereo cilia
Low magnification of the Spermatic Cord with the Ductus Deferens (DD)
Associated Glands
Low magnification of the entire Seminal Vesicle
Seminal Vesicle
Smooth Muscle
Epithelial lining of the Seminal Vesicle
Low magnification of the Prostate Gland
Low magnification of the Prostate Gland with concretions
High magnification of the Prostate Gland with concretions
The Penis
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