Normal Spontaneous Vaginal Delivery

Normal Spontaneous Vaginal Delivery Pathophysiology

1. PATHOPHYSIOLOGY (Normal Spontaneous Vaginal Delivery)
HOST AGENT ENVIRONMENT
Female Therapeutic Environment
27 years old Fertilization
G1P1001 ( Union of sperm and ovum )
Zygote - Unicellular
( Intermingling of haploid paternal 23 X or Y and maternal 23 X chromosomes )
Series of Mitotic Cell division - Cleavage
( In 24 hours become two cell organism )
In 72 hours become 16 cell organism called Morula
Morula enters the uterus on the 3
rd
day through peristaltic movement
Separate into two parts by fluid from the uterus on the 4
th
day
The outer layer gave rise to the placenta The inner layer gave rise to the embryo
( trophoblast ) ( embryoblast )
blastocytes ataches to endometrium on the 6
th
day

Implantation
Embryonic development begins during second week continues through

2. the eighth week
3 Stages
·1
st
stage – increase in cell number and with Fetal Development is from ninth week to birth
elaboration of cell products
·2
nd
stage – morphogenesis / includes mass cell Newborn baby via Vaginal Delivery
movement
·3
rd
stage – differentiation or maturation of
physiologic processes