The periovulatory, or follicular, phase: A layer of cells within the egg commences to broaden and become far more like mucus. The lining on the uterus begins to thicken. Rahim bir kas dokusudur, tüm kaslar gibi kas?l?r ve gev?er. Kanama süresince daha ?iddetli kas?l?r ve a?r? olarak his