Understanding Testis Anatomy: Coverings, Tubules, And Ampulla

Understanding Testis Anatomy: Coverings, Tubules, And Ampulla

Testis.
Answer:

It is the primary sex organ in males.

Testis Structure:

• It occurs in pair.
• It weighs – 10-40 gms.
• It measures about 5 x 3 cms.
• Testis contains about 900 seminiferous tubules, which produces sperms.
• From these tubules, sperms enters vas efferens which form epididymis.
• It is continued as Vas deferens.
• The terminal portion of it is called ampulla.

Testis Coverings:

• Testis is enclosed by.
  1. Tunica vasculosa – innermost covering.
  2. Tunica albuginea – dense middle fibrous capsule.
  3. Tunica vaginalis – outermost closed cleft.

Testis Functions:

1. It helps in production of gametes in the gonads.

2. It synthesis and secretes androgenic hormones.

• They are.
  • Testosterone – in large quantities
  • Dihydrotestosterone
  • androstenediones
    • These are secreted by the interstitial cells of leydig in testis.

3. Production and storage of viable sperms.