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| ==Take the Quiz==
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| <quiz display=shuffle>
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| {Which of the following statements is most correct concerning early development in female gametogenesis:
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| |type="()"}
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| - the total number of ooctyes is regulated by follicle stimulating hormone
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| - oocyte numbers increase prenatally and begin to decrease at puberty
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| + less than 0.1% of all oocytes formed are released during reproductive life
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| - oocytes within all antral follicles are released in sequence at ovulation
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| - oocyte selection occurs at the primordial follicle stage
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| ||Of the 7,000,000 million oocytes initially formed only 400-500 will be released during reproductive life from puberty to menopause. [[F#follicle stimulating hormone|Follicle stimulating hormone]] (from the pituitary) is involved in the development of a number of oocytes in primordial follicles from the total cohort. Oocyte number decreases from birth onward. A number of antral follicles will develop, with only one released each cycle, a few of the remainder could develop for future release the majority will degenerate by [[A#atresia|atresia]]. Oocyte selection occurs at the antral stage to form the preovulatory follicle.
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| {The embryonic follicles
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| |type="()"}
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| - true
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| + false
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| || The the middle layer of the trilaminar embryo is the [[M#mesoderm|mesoderm]] (meaning middle layer), while most of these cells are [[M#mesenchyme|mesemchymal]] in appearance, this term is used to describe the cell histological appearance/organization.
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| {The intraembryonic coelom forms within :
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| |type="()"}
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| - somites
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| + lateral plate
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| - neural tube
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| - intermediate mesoderm
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| ||The [[I#intraembryonic_coelom|intraembryonic coelom]] forms initially small spaces in the mesoderm layer and coalesce to form a single large "horseshoe-shaped" space within the '''lateral plate mesoderm''' around the embryonic disc. Both young somites ([[S#somitocoel|somitocoels]]) and the neural tube (neural tube lumen) do have cavities, but neither is called the intraembryonic coelom. Note that in early development the intraembryonic coelom opens at places on the edge of the embryonic disc to the extraembryonic coelom.
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| {Ectoderm refers only to the neural plate region of the trilaminar embryo
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| |type="()"}
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| - true
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| + false
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| || The entire layer of the trilaminar embryo is the '''ectoderm''' (meaning outer layer), the neural plate is only the central portion of this layer.
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| </quiz>
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| oocyte numbers development
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| follicles
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| sperm development
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| fertilization events
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| embryo cell division
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| implantation events/signaling
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| early embryo layers
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| early placenta
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| gastrulation/axial process
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