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Sexual Reproduction in Humans

Sexual Reproduction in Humans. Chapter –I Reproduction Systems. - Ashish Sharma. Human sexual reproduction involves. Human male reproductive system Human female reproductive system Spermatogenesis Oogenesis Fertilization Embryonic development. Human reproductive system.

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Sexual Reproduction in Humans

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  1. Sexual Reproduction in Humans Chapter –IReproduction Systems - Ashish Sharma

  2. Human sexual reproduction involves • Human male reproductive system • Human female reproductive system • Spermatogenesis • Oogenesis • Fertilization • Embryonic development

  3. Human reproductive system • Reproductive organs • Reproductive ducts • Accessory structures • Sec. reproductive organs • Sec. sexual characters

  4. Scrotum Testes Epididymes&vasa eff. Vasa defferentia Ejaculatory ducts Urethra Penis Accessory sex glands Male Reproductive System

  5. Ejaculatory ducts Urethera penis 2 tubes, arising from seminal vesicles , carry sperms & secretions 20 cm long, carries urine and sperms Copulatory organ,conducts urine and sperms Other parts of male reproductive system

  6. Mucus

  7. Ovaries Fallopian tubes Uterus Vagina External genitalia Mammary glands Human Female Reproductive System

  8. Parts of Female Reproductive System Shows developing follicles & corpus luteum & corpus albicans Attached to uterus by ovarian ligament Outer cortex stroma Inner medulla Gametes production Hormone production

  9. F A L L O P I A N T U B E S Within uterine wall Uterine part Isthmus Lateral to uterine wall Fallopian ducts PARTS Ampulla Site of fertilization Funnel like, has finger like projections- fimbrie Infundibullum

  10. U T E R U S Hollow muscular , pear shaped Between urinary bladder & rectum Fundus Communicates with fallopian tubes Parts Body Harbours embryo Communicates below with vagina Cervix V A G I N A 10 cm long Provides passage for menstrual flow Serves as receptacle for sperms Outer opening – vaginal orifice

  11. Mons pubis Anterior most portion V U L V A Erectile tissue , homologus to penis Clitoris Outer thick skin folds Labia Majora Labia Minora Inner smaller skin folds Help in lobrication, on either side of vaginal opening Bartholin’s Glands Perineum Modified sweat glands Female hormones develop them MAMMARY GLANDS Parts Nipple, areola, areolar glands(sebaceous glands), lactiferous sinuses(reservoir of milk),fatty tissue Prolactin produces milk Oxytocin releases milk

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