During pregnancy,many changes occur as a direct result of the presence of the fetus.Which of these adaptations meet this criteria?

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Leukorrhea is a white or slightly gray vaginal discharge that develops in response to cervical stimulation by estrogen and progesterone.Quickening is the first recognition of fetal movements or "feeling life." Quickening is often described as a flutter and is felt earlier in multiparous women than in primiparas.Lightening occurs when the fetus begins to descend into the pelvis.This occurs 2 weeks before labor in the nullipara and at the start of labor in the multipara.Mucus fills the cervical canal creating a plug otherwise known as the operculum.The operculum acts as a barrier against bacterial invasion during the pregnancy.Passive movement of the unengaged fetus is referred to as ballottement.

During Pregnancy,many Changes Occur as a Direct Result of the Presence