Chapter 4 Vocabulary Words Flashcards
(27 cards)
Sperm
Male sex cell
Cell
Smallest unit of life
Ovum
Female sex cell
Conception
When a sperm and a ovum collide to make a zygote
zygote
A fertilized egg
Fallopion tubes
Tubes that extends left and right from the uterus
Uterus
Organ that the baby will develop and be protected
Genetic factors
Traits passed down genes
Chromosomes
Carrys genes into living cells
dominant trait
Trait that’s the offspring is most likely to have
Resesive trait
Trait that’s the offspring is not as likely to have
Multiple pregnancy
When two or more baby’s are developing in the same pregnancy
Fraternal
When two or more baby’s develop in the same ova
Chorin
Membrane that surrounds the baby while it’s in the uterus
Identical
Babies that has the same genetic makeup
Prenatal Development
Stages of development of the baby
Germinal stage
First 2 weeks of fertilization
Amnion
Fluid filled sack
Placenta
An organ filled with blood vessels
Umbilical cord
Connects the placenta to the womb
Embryonic stage
When most of the body systems develop
Embryo
Fist 6 weeks of fertilization
Cartrilage
Soft elastic flexible tissue that provides structure of the body
Fetal stage
When the fertilizated egg is 9 weeks old
