__ allows the completion of __ & formation of a secondary oocyte.
Monthly ovulation (LH surge); Meiosis I
The secondary oocyte is arrested in __ until __
metaphase II; sperm penetration
After __, __ is completed & fertilization occurs
sperm penetration; meiosis II
3 phases of the menstrual cycle
follicular phase
ovulation phase
luteal phase
(page 10 on slide)
At the beginning of the follicular phase, there is a __, a single (flat) layer of follicular cells that surround the oocyte
primordial follicle
- in primary oocyte
FSH stimulates follicles to grow. Flat follicular cells become cuboidal and are called __. Then there is a formation of the __
primary follicles; zona pellucida
- still in primary oocyte
Follicular cells multiply and turn intro stratified epithelium - granulosa cells. These follicle cells are now __
secondary follicles
- still in primary oocyte
Follicle cells become __ with the formation of a cave, which turn into a __
antral follicles; grafian (mature) follicle
(page 8 on slide)
The mature ovarian follicle carries out __ & is ready to be __
meiosis I; ovulated
The ovulation phase is induced by a __ & the ovulated gamete is renamed __. The __ oocyte will be released to the __
surge in LH;
an ovum;
secondary;
fallopian tube
At the luteal phase, the residual follicle is renamed the __, which is an endocrine gland that produces __ to maintain the endometrial wall of the uterus for implantation.
corpus luteum; progesterone & estrogen
If fertilization fails to occur, the __ degrades into the __. Levels of __ will fall & result in menstrual flow.