Fertilization/Conception Flashcards
1
Q
Total chromosomes from the male
A
23 Total
- 22 single chromosomes
- 1 X or Y sex chromosome
2
Q
Total chromosomes from the female
A
- 22 and X chromosome
3
Q
Where does fertilization usually occur?
A
In the ampulla of the fallopian tubes
4
Q
What do the high levels of estrogen do at the time of ovulation?
A
- Thins cervical mucus to increase motility of the ovum
5
Q
What sex is XX and XY?
A
XX = female
XY = Male
6
Q
Zygote
A
Forms when egg and sperm unite
7
Q
How many chromosomes does a zygote have?
A
46
8
Q
Morula
A
- Zygote divides many times to form this as it travels down the fallopian tube to the uterus
9
Q
What are the two layers of the morula?
A
Blastocyst and trophoblast
10
Q
Blastocyst
A
- Inner layer of the morula
- Becomes the embryo, amnion, and yolk sac membrane
11
Q
Trophoblast
A
- Outer layer of the morula
- Becomes the fetal side of the plecenta and chorion
12
Q
Decidua
A
What the endometrium of the uterus is called after implantation
13
Q
What is the blastocyst called after implantation?
A
Embryo
14
Q
Decidua Basalis
A
Part of the endometrium where the blastocyst imbeds and becomes the maternal placenta
15
Q
Chorion
A
