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This type of head and shoulders pattern has more than one left or right shoulders or head. It is also known as multiple head and shoulders pattern. [citation needed] One particular type is known as a Wyckoff distribution, which usually consists of a head with two left shoulders and a weaker right shoulder. [citation needed]
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]
Once both shoulders are out, the baby is delivered through the birth canal completely. While the seven cardinal movements is considered the normal mechanism for labor and delivery of human babies, [ 12 ] pelvic sizes and shapes can vary among female humans which can increase the risk of errors in rotations and delivery, especially since these ...
In obstetrics, a shoulder presentation is a malpresentation at childbirth where the baby is in a transverse lie (its vertebral column is perpendicular to that of the mother), thus the leading part (the part that first enters the birth canal) is an arm, a shoulder, or the trunk.
At this time the baby usually turns to face the mother's back. Next occurs external rotation, which is when the shoulders emerge as the baby's head enters the maternal pelvis. The combination of maternal muscle tone and uterine contractions causes the baby's head to flex, chin to chest. Then the back of the baby's head emerges and finally the face.
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Circumference of head and chest is equal; head size is in better proportion to the body. "Baby fat" disappears as neck appears. Posture is more erect; abdomen no longer protrudes. Slightly knock-kneed. Can jump from low step; Can stand up and walk around on tiptoes "Baby" teeth stage over. Needs to consume approximately 6,300 kJ (1,500 kcal) daily.
If the cord is loose, it can easily be slipped over the infant's head. The infant can be delivered normally and placed on maternal abdomen as desired. If the cord is too tight to go over the infant's head, the provider may be able to slip it over the infant's shoulders and deliver the body through the cord.