Male repro tissue Flashcards
Testis is surrounded by a dense fibrous capsule called
Tunica albuginea
Blood-testis barrier formed by
Tight junctions between Sertoli cells
Steps of spermatogenasis
- Spermatogonium
- Primary spermatocyte
- Secondary spermatocyte
- Spermatids
- Spermatozoa
Spermiogenesis is
Transformation of haploid spermatid into spermatozoa with formation of:
- Acrosome
- Condsenation and elongation of nucleus
- Development of the flagellum
- Loss of cytoplasm
The Acrosome is derived from
Golgi complex
Purpose of Acrosome
To digest corona radiata and zona pellucida of the recently produced secondary oocyte
The production of androgen-binding protein by Sertoli cells stimulated by
FSH
How does Sertoli cells suppress FSH synthesis
by secreting Inhibin
Seminiferous tubules empty into
Rete testis
Spermatozoa pass from ducti efferentes to
the epididymis
Parasympathetic to penis
Causes Erection
From Pelvic Splanchnic N
Sympathetic to penis
Causes Ejaculation
From Lumar splanchnic N
Somatic motor efferent to penis
By pudendal N
innervate Bulbospongiosus and ischiocavernous muscles
Stimulate rapid ejection of semen out the urethra