Sexual Reproduction Flashcards
1
Q
It takes about __ days for the embryo to reach the uterus
A
5
2
Q
When the embryo sinks and is embedded in the uterine lining
A
Implantation
3
Q
Implantation occurance
A
Usually occurs about 7 days after fertilization
4
Q
A tube that attaches the embryo to the
placenta
A
Umbilical cord
5
Q
It encloses the embryo in a fluid-filled space known as the amnolotic cavity
A
Amnlotic Sac
6
Q
about ___ weeks after fertilization, all the ___ are formed. From this stage onwards the embryo is known as a ___
A
10-12, Major organs, Fetus
7
Q
Functions of placenta
A
- Allows oxygen and dissolved food substances to diffuse from the mothers blood into the fetal blood
- produces progesterone which maintains the uterine lining in a healthy state during pregnancy
8
Q
Functions of amniotic fluid
A
- Shock absorber
- protection from injury
- Promotes movement which in turn supports muscular development
- Lubricates and reduces friction in the vagina during birth
