Pregnancy and Human development (chapter 28) Flashcards
1
Q
the process in sexual reproduction that involves the union of a sperm and an egg to form a diploud zygote
A
fertilization
2
Q
An oocyte is only viable for
A
24 hours
3
Q
sperm are most viable
A
24-48 hours in female reproductive tract
4
Q
oocyte is surrounded by 2 protective structures
A
- zona pellucida
- Corona radiata
5
Q
- Innermost layer
- produced by primary oocyte and follicle
A
zona pellucida
6
Q
- outer layer
- contains cells that allows communication between cells and oocyte
A
Corona Radiata
7
Q
Release of enzymes from the acrosome of the sperm
A
Acrosomal reaction
8
Q
When sperm binds to zona pellucida….
A
Ca2+ levels in sperm rise
9
Q
The entry of more than one sperm cell into the oocyte can result in incorrect chromosomal number
A
Polyspermy
10
Q
- sperm binding receptors are shed from oocyte surface
A
oocyte membrane blocks
11
Q
A
