Testis and Epididymis: Features & Structure

The exercise was created 2025-01-11 by modigamodi. Question count: 18.




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  • Testes male gonads, site of sperm production and testosterone synthesis
  • testes location located in the scrotum, suspended by the spermatic cord
  • Descent of Testes originate retroperitoneally in the abdomen, descend through the inguinal canal to the scrotum
  • Endocrine testosterone production by Leydig cells
  • Exocrine Sperm production (spermatogenesis in seminiferous tubules)
  • Spermatogenesis Sperm matures as it passes through seminiferous tubules, straight tubules, rete testis, and efferent ducts
  • dimensions of testes ~3x2x5 cm; elliptical, with anterior/posterior surfaces and superior/inferior poles
  • covers of testes Tunica Albuginea and Tunica Vaginalis
  • Tunica Albuginea Thick fibrous capsule
  • Tunica Vaginalis Serous membrane covering medial and anterior surfaces
  • Posterolaterally to the testes the epididymis
  • the inferior pole of testes attaching to scrotal ligament
  • the superior pole of testes related to the head of the epididymis
  • function of scrotal ligament prevents testes rotation
  • higher than left testicle the right testicle
  • types of seminiferous tubules intratesticular and extra testicular
  • intratesticular connects seminiferous tubules to rete testis
  • extra testicular tubules formed by 6-8 efferent ducts which attach the epididymis to superior pole extremity of testes

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