Tutorial on Male Reproductive Anatomy

Introduction

• Overview of male reproductive system structures
• Focus on the testes as primary sex organs
• Functions of testes:
  • Produce sperm
  • Produce male hormones (androgens), primarily testosterone

Testes Anatomy

• Descent of Testes:

  • Descend from abdominal cavity via inguinal canal into the scrotum

• Testes Structure:

  • Surrounded by a capsule formed by a layer of peritoneum
  • Capsule is called Tunica vaginalis
    • Has a parietal layer and a visceral layer
  • Tunica albuginea: inner sac encapsulating the testis
    • Forms projections (septa) dividing the testis into lobules
    • Lobules contain coiled tubular structures (seminiferous tubules)

Pathway of Sperm

• Seminiferous Tubules:

  • Coiled structures within lobules
  • Sperm cells secreted from their lining

• Tubule Network:

  • Straight tubules lead from seminiferous tubules
  • Join to form Reti Testis
    • Latin "reti" means net, indicating net-like structure

• Efferent Ductules:

  • Connect Reti Testis to the Epididymis

Epididymis

• Located on the posterior and superior aspect of the testis
• Composed of three parts:
  • Head
  • Body
  • Tail (inferiorly)
• Function: Stores sperm cells until ejaculation

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This tutorial covers the basic anatomy and function of the male reproductive system, focusing on the testes and associated structures involved in sperm production and storage.