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Fertilization, Pregnancy nd Lactation By Dr. D. Fisher
Fertilization of the Ovum ,[object Object],[object Object],[object Object],[object Object]
Fertilization
Early Stages of Development
Blastocyst
Formation of Placenta
Mature Placenta and Fetus
Implantation of Zygote ,[object Object],[object Object],[object Object],[object Object],[object Object]
Early Cell Division ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Prenatal Development ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
The Placenta ,[object Object],[object Object],Permeability 0 8 20 40
Diffusion of O 2  and CO 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],20 mmHg gradient
Hormonal Control of Pregnancy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Hormonal Secretion of the Placenta ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Functions of HCG ,[object Object],[object Object],[object Object]
Functions of HCS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Functions of Estrogen ,[object Object],[object Object],[object Object],[object Object]
Functions of Progesterone ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Fetal Growth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Parturition ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Parturition
Factors Influencing Parturition
Apgar Scores ,[object Object],[object Object],[object Object],[object Object]
Parturition Physiology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Lactation: ,[object Object],prolactin Promotes the secretion of milk Estrogen and progesterone Birth Decrease [estrogen + progesterone Increase lactogenic effect (prolactin) Increase [milk] in the alveoli of the  Breast – not the ducts!!!!!
Ejection of Milk: Oxytocin ,[object Object],[object Object],[object Object],Suckling of breast Afferent conduction of APs spinal cord hypothalamus Prolactin secretion Oxytocin secretion Increase [milk] in the alveoli of the breast Contraction of the myoepithelial cells Ejection of milk

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12.fertilization pregnancy and_lactation