slide 26 Flashcards
1
Q
period from onset of uterine contractions until cervical dilation is complete
A
Stage one
2
Q
period from maximal cervical dilation until the baby exits through the vagina
A
Stage two
3
Q
process of expulsion of the placenta through the vagina
A
Stage three
4
Q
Identical twins result from the splitting of embryonic tissue from the
A
same zygote early in development
5
Q
Fraternal twins result from the fertilization of two different
A
ova by two different spermatozoa
