Pregnancy and Reproduction 1000ft View Flashcards
What cells are the located at the site of implementation?
Stromal cells
Is amniotic fluid sterile?
Yes, but immune cells are within the lining in wait for an infectious invader
What other substance is within sperm?
Prostoglandins, and these help propel them upward
What helps sperm find the egg?
Prostoglandins (seminal fluid) in sperm and female orgasm
What is the lifespan of sperm?
24-48 hours
What causes the white color of sperm?
Prostatic fluid
Where does fertilization usually occur?
Ampulla of the fallopian tube
What is the concept of monospermy?
One single sperm is allowed to enter the cell, once entered the cell will depolarize so no others are able to enter
Breakdown of what layer allows sperm to reach the plasma membrane of the egg?
Zona pellucida
How long does it take epithelium lining to reach max thickness after fertilization?
1 week
After fertilization, the zygote will continue to divide to form?
Blastocyte
When will the blastocyte implant?
6 days after fertilization
When does implantation of the blastocyte occur?
16-22 days
What is the inner layer of the trophoblast?
Amnion
What is the outer layer of the trophoblast?
Chorion