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The occipito-anterior position is ideal for birth; it means that the baby is lined up so as to fit through the pelvis as easily as possible. The baby is head down, facing the spine, with their back anterior. In this position, the baby's chin is tucked onto their chest, so that the smallest part of their head will be applied to the cervix first.
In obstetrics, position is the orientation of the fetus in the womb, identified by the location of the presenting part of the fetus relative to the pelvis of the mother. Conventionally, it is the position assumed by the fetus before the process of birth, as the fetus assumes various positions and postures during the course of childbirth .
Sacrum posterior (SP)—the buttocks face posteriorly. Shoulder presentations with transverse lie are classified into four types, based on the location of the scapula (shoulder blade). This presentation needs to be delivered by cesarean section. Left scapula-anterior (LSA) Right scapula-anterior (RSA) Left scapula-posterior (LSP)
Posterior asynclitism is when the fetal occiput is facing the mother's spine, and anterior asynclitism is when the fetal occiput is facing the mother's belly. The most common and preferred type of asynclitism is the left occiput anterior asynclitism because the baby's head enters the pelvis in such a way that it minimizes the circumference of ...
Back labor can be painful. Relief may be sought by trying to find a comfortable position or using a birth ball. Back labor (less commonly called posterior labor [1] [2]) is a term referring to sensations of pain or discomfort that occur in the lower back, just above the tailbone, to a mother during childbirth. [3]
Anterior shoulder in obstetrics refers to that shoulder of the fetus that faces the pubic symphysis of the mother during delivery. Depending upon the original position of the fetus, either the left or the right shoulder can be the anterior shoulder. It is known as the anterior shoulder as it faces the anterior of the mother. This distinction ...
In this position, the back is curved, the head is bowed, and the limbs are bent and drawn up to the torso. A compact position is typical for fetuses. Many newborn mammals, especially rodents, remain in a fetal position well after birth. This type of compact position is used in the medical profession to minimize injury to the neck and chest.
Posterior shoulder in obstetrics refers to the shoulder of the fetus other than the anterior shoulder. Thus, the posterior shoulder faces the rectum of the mother during delivery. Whether left or the right shoulder becomes the posterior shoulder is dependent upon the original position of the fetus.