Fertilisation and the Luteal Phase

Question 1

What does the menstrual cycle achieve?

Answer 1

1. Selects a single dominant follicle and oocyte (via FSH)
2. Regular spontaneous ovulation
3. Correct haploid number of chromosomes in the oocyte
4. Cyclical changes in uterine tube, endometrium and cervix.
   Endometrium either maintained for implantation or breaks down
5. Support for implanting embryo via CL’s progesterone acting on endometrium
6. New cycle initiation if fertilisation does not occur

Question 2

Meiosis

Cortical and acrosomal reaction

Answer 2

https: //www.youtube.com/watch?v=uTOOiqfb1uI
https: //www.youtube.com/watch?v=7G2rL5Cutd4