Male Reproduction Function of the Male Formation of Sperm Deposition of Sperm into the Female II. Male Reproductive Organs Testis Produce Spermatozoa Develop in Seminiferous tubules b. Sertoli cells act as "Nurse Cells" B. Produce Male Sex Hormones Androgens b. Produced in Leydig Cells
Male Reproduction … contd. 2. Scrotum Temperature Regulation Testis located outside body cavity Sperm can't be produced at body temperature b. Brought closer to body wall when cold 3. Epididymis Sperm Maturation (Become Motile) Sperm Storage 4. Vas Deferens (Ductus Deferens) Sperm Transport Some Storage
Male Reproduction … contd. 5. Accessory Sex Glands Seminal Vesicles, Prostate, Bulbourethral glands Functions: Add Fluid (Seminal Plasma) to Semen Provide Nutrition to Sperm Lubricant 6. Urethra A. Sperm Transporter
Male Reproduction … contd. 7. Penis Copulatory Organ Must be rigid and erect to penetrate female Blood flows into spongy, cavernous connective tissue chambers Corpus Cavernosum Corpus Spongiosum 8. Prepuce Invaginated folds of skin that surround the free extremity of the penis Foreskin
Female Reproduction Function of the Female The production of Ova Provide an environment for growth and nutrition of the fetus that develops after fertilization Give Birth Continue nutritional function through lactation
Female Reproduction … contd. II. Female Reproductive Organs Ovary Produce the Ovum Follicle --Rupture Ovulation B. Produce Female Sex Hormones Follicular cells Granulosa cells --Oestrogens Theca cells --Progesterone C. Maintain Pregnancy Corpus Luteum i. Progesterone
Female Reproduction … contd. 2. Oviduct Site of Fertilization Haploid sperm and egg fuse to form Diploid zygote 3. Uterus Site of Embryo and Foetal Development Produces Prostaglandin if not Pregnant Causes Luteolysis 4. Cervix Barrier Selectively lets sperm in uterus and oviducts Closed or sealed during pregnancy B. Expulsion of Foetus
Female Reproduction … contd. 5. Vagina Female Copulatory Organ Birth Canal 6. Vulva A. Opening to female reproductive tract