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Relationship of presenting part to maternal pelvis based on presentation. The fetus enters the pelvis in the occipito-transverse plane (left or right), descent, and flexion and then rotates 90 degrees to the occipitoanterior (most commonly). Cephalic presentation. Vertex presentation with longitudinal lie: [1]
In obstetrics, a cephalic presentation or head presentation or head-first 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). [1]
Breech presentation with longitudinal lie: [1] Left sacrum anterior (LSA)—the buttocks, as against the occiput of the vertex presentation, like close to the vagina (hence known as breech presentation), which lie anteriorly and towards the left. Right sacrum anterior (RSA)—the buttocks face anteriorly and towards the right.
Cephalic presentation; N. Naegele obliquity; P. Position (obstetrics) Posterior shoulder; Presentation (obstetrics) This page was last edited on 4 November 2018, at ...
Shoulder presentations are uncommon (about 0.5% of births) [1] since, usually, toward the end of gestation, either the head or the buttocks start to enter the upper part of the pelvis, anchoring the fetus in a longitudinal lie. It is not known in all cases of shoulder presentation why the longitudinal line is not reached, but possible causes ...
External cephalic version (ECV) is a process by which a breech baby can sometimes be turned from buttocks or foot first to head first. It is a manual procedure that is recommended by national guidelines for breech presentation of a pregnancy with a single baby, in order to enable vaginal delivery .
The vocabulary is extensive, varied and complex, and requires a systematic presentation. Within the international field, a group of experts reviews, analyzes and discusses the morphological terms of the structures of the human body, forming today's Terminology Committee (FICAT) from the International Federation of Associations of Anatomists (IFAA).
Communication Research Reports is a quarterly peer-reviewed academic journal covering communication studies. It was established in 1984 and is published by Routledge . The journal specializes in the publication of reports-style manuscripts using social scientific methods (such as quantitative data analysis).