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Reproductive System

Reproductive System. By Katie Ust. Function. The primary function of the reproductive system is to produce offspring. Reproduction. Sexual. Asexual. No genetic contribution from another Fungi – binary fission Yeasts – budding Water fleas - parthenogenesis. Sperm and egg fertilization

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Reproductive System

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  1. Reproductive System By Katie Ust

  2. Function • The primary function of the reproductive system is to produce offspring.

  3. Reproduction Sexual Asexual No genetic contribution from another Fungi – binary fission Yeasts – budding Water fleas - parthenogenesis • Sperm and egg fertilization • Receive two sets of different genes

  4. Spermatogenesis Vs. Oogenesis Spermatogenesis Oogenesis Creation of an ovum Meiosis in oocytes results in haploid oocyte and polar body Unequal cytokinesis • Male primary sperm undergo meiosis to produce more sperm

  5. Menstrual Vs. Estrous Cycle Menstrual Cycle Estrous Cycle Reabsorbs endometrium if conception doesn’t occur Most females are only sexually active during estrus phase of estrous cycle • Endometrium shed if conception doesn’t occur

  6. Ovarian Cycle • Oocyte matures, it erupts from the ovary, travels down the oviduct to the uterus • Usually about 28 days • Hormones estrogen and progesterone present

  7. Uterine Cycle • Uterus lining grows and prepares for an embryo to implant • If an egg is not fertilized the lining comes of (menstruation) • The pituitary gland releases follicle stimulating hormones (FSH) and luteinizing hormone (LH) at this time

  8. Development • Gastrulation takes place after cleavage and formation of a blastula. • Gastrulation is followed by organogenesis which develops the three germ layers: the ectoderm, mesoderm, and endoderm. • A gastrula is formed by the ectoderm moving inward forming the endoderm with the mesoderm in the middle.

  9. Germ Layers • Once the ectoderm is developed it forms the epidermis, or skin. • The endoderm becomes muscle, vertebrae, blood, blood vessels, bone, and a notochord. • The endoderm consists of your digestive and respiratory systems, including the organs involved.

  10. Reproductive Disorder: Infertility • Unable to reproduce due to many factors like sexually transmitted diseases, medication (especially birth control) side effects, and uterine abnormalities • Treatments can include hormone therapies, artificial insemination, and in vitro fertilization • This happens to 15% of all couples.

  11. Priapism • Priapism is a disease caused by alcohol and drug abuse or blood diseases and consists of persistent painful erections often lasting over four hours • Treatment is usually draining blood from the penis by a needle, sometimes medication is enough, but sometimes even emergency surgery is required in order to prevent future complications.

  12. Sources • Med-help.net/Female/Reproductive/Disorders.html • Med-help.net/Male/Reproductive/Disorders.html

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