Download Child Birth

Pregnancy and Childbirth
Lesson #24
Conception / Fertilization:
union of an ovum and a
sperm.
 Takes place in the upper 1/3
of the fallopian tube
 Heredity: passing of
characteristics from biological
parents to their children.
 Chromosome: carries genes.


Gene: unit of hereditary material
– 46 Chromosomes (23 from father, 23 from the
mother)
– Female: X chromosome
– Male: X or Y chromosome
– XX = female
– XY = male
XX
Female
or
XY
Male
Sex-linked characteristics: hereditary
characteristics transmitted on the sex
chromosomes.
 Amniotic Sac: pouch of fluid that
surrounds a fetus.
 Endometrium: Inner lining of the uterus.

Embryo: Conception to 2nd month of
growth.
 Fetus: 9th week to birth
 Placenta: Anchors the embryo to the
uterus.
 Umbilical Cord: Ropelike structure that
connects the embryo to the placenta.

Tools to determine if the baby is
developing correctly
Ultrasound: provide
an image of the
developing baby
 Amniocentesis: the
use of a needle
(inserted into the
uterus to get fluid
from the amniotic
sac)

Pregnancy
 1st
sign of pregnancy
– Woman will miss her period

Labor: Process of childbirth
– Dilation of the cervix
– Delivery of the baby
– Delivery of the placenta
Complications
Ectopic Pregnancy
 Miscarriage
 Cesarean Section
 Stillbirth

After the Baby is Born
Apgar Score: rating of the baby 1 to 5
minutes after birth.
 Postpartum period: Hormones produce
changes in the mother’s body.
