Gonad- testis General features Paired, smooth, ovoid male reproductive organ, slightly flattened anteroposteriorly Located in scrotum Produces sperm and secretes androgens
Gonad – testis General features ◼ Paired, smooth, ovoid male reproductive organ, slightly flattened anteroposteriorly ◼ Located in scrotum ◼ Produces sperm and secretes androgens
Gonad- testis Structures of testis Tunica albuginea: a tough fibrous coat ao Septula testis: numerous fibrous into the gland Lobules of testis contain the contorted seminiferous tubules Striaght seminiferous tubules Rete testis Efferent ductules of testis open into the head of the epididymis
Gonad – testis Structures of testis ◼ Tunica albuginea : a tough fibrous coat ◼ Septula testis : numerous fibrous into the gland ◼ Lobules of testis : contain the contorted seminiferous tubules ◼ Striaght seminiferous tubules ◼ Rete testis ◼ Efferent ductules of testis open into the head of the epididymis
Testis Seminiferous tubules
Testis Seminiferous tubules
Epididymis Comma-shaped, with head body and tail of epididymis Located on superior extremity and posterolateral aspect of testis Contains tortuous canal that extends from testis to ductus deferens in spermatic cord Function -the site of accumulation and storage of sperm
Epididymis ◼ Comma-shaped, with head, body and tail of epididymis ◼ Located on superior extremity and posterolateral aspect of testis ◼ Contains tortuous canal that extends from testis to ductus deferens in spermatic cord ◼ Function – the site of accumulation and storage of sperm
Ductus deferens a thick-walled muscular tube approximately 45 cm in length It transports sperm form epididymis to ejaculatory duct
Ductus deferens ◼ A thick-walled muscular tube approximately 45 cm in length. ◼ It transports sperm form epididymis to ejaculatory duct