Chapter 5 Flashcards
Parental Development
the development of a baby during the period before birth
Ovum
a female egg
Uterus
the womb or the organ in a women’s body in which the baby develops during pregnancy
Sperm
male cell
Conception
the union of a ovum and a sperm resulting in the beginning of a pregnancy
Embryo
The second stage of the pregnacy
Zygote
a fertilized egg and the first stage in the pregnacy
Placenta
The tissue that connects the sacs around the unborn baby to the mothers uterus
Umbilical cord
A long tube that connects the placenta to the unborn baby
Amniotic fluid
A special fluid that surrounds and protects the developing baby during pregnancy
Fetus
The unborn baby from about the eighth or ninth week of pregnancy until birth
Quickening
By the fourth or fifth month of development, the kicking and moving of the baby can be felt by the mother
Lightening
During the ninth month of pregnancy, the fetus drops into the birth canal to prepare for labor
Explain the difference between dominant and recessive genes
A dominate gene is a stronger gene and the recessive genes are the weaker genes
How is the sex of a baby determined?
The sex of a baby is determined by the special chromosomes that come in two types, x and y
Adoption
Adoption can be a means of providing home for one or more children who would not otherwise have one