
A cephalic presentation is a situation at childbirth where the fetus is in a longitudinal lie and the head enters the pelvis first; the most common form of cephalic presentation is the vertex presentation where the occiput is the leading part (the part that first enters the birth canal). All other presentations are abnormal (malpresentations) whic...
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http://en.wikipedia.org/wiki/Cephalic_presentation

Presentation of any part of the foetal head, usually the upper and back part as a result of flexion such that the chin is in contact with the thorax in vertex presentation; there may be degrees of flexion so that the presenting part is the large fontanel in sincipital presentation, the brow in brow presentation, or the face in face presentation. â...
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http://www.encyclo.co.uk/local/20973

presentation of any part of the fetal head in labor, whether the vertex, face, or brow.
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http://www.encyclo.co.uk/local/21001

When the baby's head faces down toward the mother's cervix
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http://www.encyclo.co.uk/local/22139

Type: Term Definitions: 1. presentation of any part of the fetal head, usually the upper and back part, as a result of flexion such that the chin is in contact with the thorax in vertex presentation; there may be degrees of flexion so that the presenting part is the large fontanel in sincipital presentation, the brow in brow presentation, or the fa...
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http://www.medilexicon.com/medicaldictionary.php?t=71932

When the baby's head faces down toward the mother's cervix as labor nears. This is the typical presentation for a full-term baby.
Found on
https://www.whattoexpect.com/pregnancy/glossary
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