histology of reproduction

Question 1

when do oogonia begin to differentiate into primary oocytes

Answer 1

5 months post fert

Question 2

Whatis a primordial follicle?

Answer 2

Primary oocyte surrounded by connective tissue follicular cells

Question 3

What is the primary follicle?When in a females life does it happen?

Answer 3

onset of puberty, follicular cells become CUBOIDAL (now called GRANULOSA CELLS) Zona pellucida forms

Question 4

What is the secondary follicle?

Answer 4

stage after primary follicle where INTERcellular spaces fill with fluid, making a large single fluid filled antrum

Question 5

Mature Graffian follicle

Answer 5

oocyte surrounded by zonapellucida and granulosa cells called corona radiata

Question 6

At about 36 hours prior to ovulation high levels of hormones stimulate a surge, what does this do?

Answer 6

It induces completion of FIRST MEIOTIC diision, this leaves a 1st polar body and the secondary oocyte. Meiosis II will start but it will be halted until a sperm may fertilize it