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Stages of Oocyte Development

Stages of Oocyte Development
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Description: a Primary oocyte, not yet A transparent and
released from meiosis l. A somewhat elastic layer.
cell layer is forming around the zona pellucida,
it. A follicle consists of the starts forming around
cell layer and the oocyte. the primary oocyte.
‘ Primordial
‘ ‘ follicle
The corpus
luteum breaks
down when
the woman
doesn't get a A corpus
pregnant. luteum forms
from remnants
of the ruptured
follicle.
A fluid-filled
cavity (antrum)
starts forming
in the follicle’s
cell layer.
a Ovulation. The mature follicle ruptures, releasing
the secondary oocyte and first polar body.
9 Mature follicle.
Meiosis | is over.
The secondary
oocyte and first
polar body are
now formed.
First polar body
Secondary oocyte
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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44397
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