Pregnancy and Fetal Development John J. Parrish
Description: Pregnancy and Fetal Development John J. Parrish Placental Functions Placenta Placental Functions Placenta Gas Nutrients Waste products Immunosupression Prevents infiltration by maternal defenses Filters toxins Shock Absorber Transient
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slide1. Pregnancy and Fetal Development John J. Parrish<br>
slide2. Placental Functions Placenta<br>
slide3. Placental Functions Placenta Gas
Nutrients
Waste products Immunosupression
Prevents infiltration by maternal defenses
Filters toxins Shock Absorber Transient
Estrogen
Progesterone
HCG
eCG
PL<br>
slide4. Similarities in Early Development MAN PIG BIRD<br>
slide5. Developmental Horizons Mare Cow Ewe Sow Woman
Germ layers 13-14 14 10-14 7-8 10-14 Open neural tube 20 15-21 13 Fusion of chorioamniontic folds 18 17 16 Heart beat apparent 24 21-22 20 16 25 Limb buds visible 24 25 28-35 17-18 28 Cotelydons first appear 30 Eye differentiation 40 30-45 42-49 21-28 Birth 340 280 147-155 112 266 Developmental Features Critical Organ Systems Develop Early!<br>
slide6. Fetal Development in the Human Ovulation Length (cm) Age of Fetus (weeks since last menstruation) Weight (kg) Parturition<br>
slide7. Crown Rump Estimates of Age
Crown rump length
Length femur, radius or tibia
Circumference of head<br>
slide8. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype Fetal Hormones
Thyroid
Insulin
Growth hormone Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide9. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype<br>
slide10. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype<br>
slide11. Genetics
Species
Breed
Litter size
Genotype Factors Influencing Fetal Growth<br>
slide12. Genetics
Species
Breed
Litter size
Genotype Factors Influencing Fetal Growth Certains lines of animals may grow faster.<br>
slide13. Factors Influencing Fetal Growth Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide14. Factors Influencing Fetal Growth Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide15. Factors Influencing Fetal Growth Fetal Hormones
Thyroid
Insulin
Growth hormone Skeletal and muscular development Increased energy substrate availability and stimulates placental growth Stimulates fetal growth<br>
slide16. Uterine Size Changes During Pregnancy Hyperplasia
Increase in # of cells
Hypertrophy
Increase in size of cells
Stretching<br>
slide17. Placenta Liver Left Atrium Lungs Right Atrium Foramen
Ovale Ductus
Venosus Ductus
Arteriosus Aorta Umbilical Arteries Umbilical Vein Portal Vein Vena Cava Head
and
Heart Tissues<br>
slide18. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide19. Relative P4 and E2<br>
slide20. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide23. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide25. Progesterone Maintains Pregnancy!<br>
slide26. Progesterone is Essential To Maintain Pregnancy Corpus Luteum Placenta<br>
slide27. Other Species in Which Placenta Does not Take-over Progesterone Production Bitch
Queen
Alpaca, Llama, Camel
Rabbit
Goat<br>
slide2. Placental Functions Placenta<br>
slide3. Placental Functions Placenta Gas
Nutrients
Waste products Immunosupression
Prevents infiltration by maternal defenses
Filters toxins Shock Absorber Transient
Estrogen
Progesterone
HCG
eCG
PL<br>
slide4. Similarities in Early Development MAN PIG BIRD<br>
slide5. Developmental Horizons Mare Cow Ewe Sow Woman
Germ layers 13-14 14 10-14 7-8 10-14 Open neural tube 20 15-21 13 Fusion of chorioamniontic folds 18 17 16 Heart beat apparent 24 21-22 20 16 25 Limb buds visible 24 25 28-35 17-18 28 Cotelydons first appear 30 Eye differentiation 40 30-45 42-49 21-28 Birth 340 280 147-155 112 266 Developmental Features Critical Organ Systems Develop Early!<br>
slide6. Fetal Development in the Human Ovulation Length (cm) Age of Fetus (weeks since last menstruation) Weight (kg) Parturition<br>
slide7. Crown Rump Estimates of Age
Crown rump length
Length femur, radius or tibia
Circumference of head<br>
slide8. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype Fetal Hormones
Thyroid
Insulin
Growth hormone Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide9. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype<br>
slide10. Factors Influencing Fetal Growth Genetics
Species
Breed
Litter size
Genotype<br>
slide11. Genetics
Species
Breed
Litter size
Genotype Factors Influencing Fetal Growth<br>
slide12. Genetics
Species
Breed
Litter size
Genotype Factors Influencing Fetal Growth Certains lines of animals may grow faster.<br>
slide13. Factors Influencing Fetal Growth Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide14. Factors Influencing Fetal Growth Environment
Mother
Nutrition
Size, Parity
Placenta
Blood flow
Size<br>
slide15. Factors Influencing Fetal Growth Fetal Hormones
Thyroid
Insulin
Growth hormone Skeletal and muscular development Increased energy substrate availability and stimulates placental growth Stimulates fetal growth<br>
slide16. Uterine Size Changes During Pregnancy Hyperplasia
Increase in # of cells
Hypertrophy
Increase in size of cells
Stretching<br>
slide17. Placenta Liver Left Atrium Lungs Right Atrium Foramen
Ovale Ductus
Venosus Ductus
Arteriosus Aorta Umbilical Arteries Umbilical Vein Portal Vein Vena Cava Head
and
Heart Tissues<br>
slide18. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide19. Relative P4 and E2<br>
slide20. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide23. Relative P4 and E2 Weeks of Gestation Ovulation<br>
slide25. Progesterone Maintains Pregnancy!<br>
slide26. Progesterone is Essential To Maintain Pregnancy Corpus Luteum Placenta<br>
slide27. Other Species in Which Placenta Does not Take-over Progesterone Production Bitch
Queen
Alpaca, Llama, Camel
Rabbit
Goat<br>