垂体腺是位于脑下的宛如花生米大小的一个器官，是你身体内最重要的生产内分泌或激素的腺体。
前脑内部还有丘脑、下丘脑和垂体腺。
In the inner part of the forebrain sit the thalamus, hypothalamus, and pituitary gland.
排卵是由脑基底部的垂体腺控制的复杂活动。
Ovulation is a complex event controlled by the pituitary gland, which is located at the base of the brain.
垂体腺分泌卵泡刺激素（FSH），刺激一侧卵巢的卵泡发育。
The pituitary gland releases follicle-stimulating hormone (FSH), which stimulates follicles in one of the ovaries to begin growing.
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