Cat Ovary Maturing Follicle Microscope Picture

[TerrorByte]

Okay, so I have to label a picture of a Maturing Follicle in a cat ovary.

I need atleast five labels, and I also have a few questions to ask.

First, I can identify the ovum itself, the cytoplasm of the ovum, and the Zona Pellucida in the picture. That makes three. I cannot seem to find two more things to identify, and I've had difficulty in finding resources on the matter...

Here is my picture: http://www.freewebtown.com/adeel/catovary.bmp


It doesn't have a nucleus or nucleolus visible, so I can't label those of course. I also can't label the close by primordial egg cells, since they're not part of the maturing follicle. Of course I can't label the follicle itself. Any suggestions? (What is the actual membrane of maturing follicle called? That could be a label.

Another question. When that egg is fertilized by the sperm that come, what determines which sperm is able to fertilize the egg, instead of the other ones...?

Thank you guys

[TerrorByte]

Okay I've updated the picture with labels here:

http://www.freewebtown.com/adeel/catovary2.bmp

Are my current labels correct? I still need one more.