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Reproductive Systems
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Endocrine System Within the Male Reproductive System
Teste Produces testosterone Secondary Sex Characteristics Cowper’s Gland Neutralizes the vagina & urethra Seminal Vesicle Provides energy-rich glucose to the sperm Prostate Gland Provides structure & support
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Endocrine System in the Female Reproductive System
Ovaries Estrogen Secondary Sex Characteristics Prepares uterus for implantation of embryo Progesterone Builds uterine lining
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Menstruation Controlled by ovaries and pituitary gland
Follice (days 1-13) FSH Stimulates estrogen production Uterine lining thickens Ovulation (day 14) FSH & LH drop drastically Release egg Corpus Luteum (days 15-21) Empty follicle Increased progesterone Thickens uterine lining Menstruation (days 1-7) Corpus luteum shrivels Stop progesterone Uterine lining shed
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Stop of Menstruation Pregnancy Menopause Temporary 40 weeks
Permanent
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Fertilization Types of Fertilization
Internal External Gamete Fusion Oviduct Water Animals Land Fish/ Amphibians Egg # Few Thousands Yolk Size Small Large Fertilization- formation of a zygote within fallopian tube Zygote- fusion of monoploid (1 set of genes) egg and monoploid (1 set of genes) sperm Gametes- sex cells
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Embryo Formation Fertilization Cleavage- Split
Gastrula: Differentiation Blastula- Hollow Sphere
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Differentiation Ectoderm Endoderm Mesoderm Skin Nervous System
Digestive System Respiratory System Muscle Circulatory System
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Embryo Development Internal Umbilical Cord Placenta Inside the uterus
Connection between the mother and fetus Placenta Many blood vessels
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Malfunctions Miscarriage Corpus luteus breaks down
Uterine lining not thick enough for embryo to implant Abort the embryo
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