In vitro and in vivo studies reveal that hamster oocyte meiotic arrest is maintained only transiently by follicular fluid, but persistently bymembrana/cumulus granulosa cell contact.
From theCambridge English Corpus
An apparent source of such a factor within the follicle is the major follicular component missing from the in vitro system, namely themembranagranulosa cells.
From theCambridge English Corpus
Often called a third eyelid or haw, it may be referred to in scientific terminology as the "plica semilunaris", "membrananictitans" or "palpebra tertia".
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In the antral follicle, it may be regarded as an extension of themembranagranulosa.
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Included in the follicles are the cumulus oophorus,membranagranulosa (and the granulosa cells inside it), corona radiata, zona pellucida, and primary oocyte.
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The eggs retain casts of the "membranatestacea", the internal membrane that adheres to the shell, familiar to anyone who has peeled a hard-boiled egg.
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Apart from the transmission of the medulla oblongata and its membranes, the foramen magnum transmits the vertebral arteries, the anterior and posterior spinal arteries, themembranatectoria and alar ligaments.
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At one part of the mature follicle the cells of themembranagranulosa are collected into a mass which projects into the cavity of the follicle.
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The sound is produced by vibrations of some or all of the "membranatympaniformis" (the walls of the syrinx) and the "pessulus" caused by air flowing through the syrinx.
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