Oogenesis

[dulak]

Few things to note that were omitted in this lecture:
1. Many primordial follicles, and therefore primary follicles are recruited (NOT just one). All of the follicles undergo atresia except one dominant (pre-ovulatory) follicle which is ovulated.
2. Zygote does not implant in the endometrium. The zygote undergoes cell division and morphological changes in the fallopian tube to become morula and then finally a blastocyst. The blastocyst implants into the endometrium.
3. Upon fertilisation, you get a second polar body. In contrast to the first polar body which is basically functionless, the second one has an important function. The second polar body determines the axis of the first division from zygote to 2-cell stage.

Apart from these omissions (which are sometimes necessary for the interest of time and simplicity), a great explanation! Thanks.

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[naldredge]

This is a great explanation of oogenesis! Thanks so much.

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[chandragirikoushik]

EXCELLENT EXPLANATION  tanx fr making it easier to understand

[rajarithika]

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[arizeokeke]

Wow! This video was awesome. I was struggling with understanding oogenesis in my physiology course. But your video helped me to fully understand the process

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