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The Reproductive System Functions to ensure the continuation of the species by reproducing Primary Sex Organs Gonads – testes in male – ovaries in female Function – Produce gametes sperm (spermatozoa (singular spermatozoon)0 ova (singular ovum) – Produce hormones testosterone estrogen progesterone Accessory Reproductive Organs All other structures are designed to – facilitate the meeting and fusion of sperm and egg – support the growth and development of offspring External Genitalia Penis – shaft (body) erectile tissue – glans penis (head) Prepuce (foreskin) Scrotum – divided sac – holds testes – keeps testes cool circumsized External Genitalia uncircumsized Penis Transverse Cut epidermis dermis corpus cavernosa central artery corpus spongiosum urethra Male Reproductive System Testes Seminiferous Tubules Seminiferous Tubules spermatozoon sertoli cell Leydig cell: produce testosterone Route of Sperm seminiferous tubules – spermatozoa – sertoli cells release “fluid” to flush sperm onward epididymis – spermatozoa mature vas deferens (ductus deferens) – smooth muscle propels sperm down ducts Route of Sperm vas deferens seminal vesicle – adds 60% of seminal fluid ejaculatory duct prostate – adds milky alkaline fluid urethra bulbourethral gland – adds mucus External Genitalia - Vulva mons pubis clitoral hood clitoris labia major labia minor greater vestibular glands vaginal orifice Adult female, shaved Internal Organs and Structures “Broad Ligament” connects uterus to walls and floor of pelvis 1 Round Ligament connects uterus anteriorly to the mons pubis primary follicle graafian follicle oocyte granulosa cells
