Development And Inheritance Flashcards
Prenatal development
Embryonic: fertilization to end of week 8
Fetal period: week 9 until birth of baby
Three trimesters
What does the term capacitation mean
Changes that occur to the sperm cell in the female reproductive system
What is a zygote and how is it different from a sperm cell and an egg cell?
A fertilized ovum or a diploid cell with 46 chromosomes
Different because sperm and egg cells are haploids with 23 chromosomes
Morula
a solid ball of cells
Blastomere
small cells formed during early cleavages during embryonic period
Blastocyte
a hollow ball of embryonic cells
Trophoblast
outer superficial layer of cells in the wall of the blastocyst
What structure produces hG during pregnancy
Hormone produced by the developing placenta (chorin) that maintain corpus luteum
What are various tests used to identify any abnormality of the developing fetus?
Fetal ultrasonograohy, amniocentesis, CVS
What does involution mean?
Reversion of uterus to its normal shape and size due to tissue catabolism following childbirth
Hormones in pregnancy
hCG, Relaxin, hCS, CRH
