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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]
Injury to the brain and skull may occur due to the rapid passage of the baby's head through the mother's pelvis. This causes rapid decompression of the baby's head. In contrast, a baby going through labor in the head-down position usually experiences gradual molding (temporary reshaping of the skull) over the course of a few hours.
Presentation of twins in Der Rosengarten ("The Rose Garden"), a German standard medical text for midwives published in 1513. In obstetrics, the presentation of a fetus about to be born specifies which anatomical part of the fetus is leading, that is, is closest to the pelvic inlet of the birth canal.
Although her baby was in the breech position at 30 weeks, at 38 weeks she was perceived to be in the opposite position with her head down – so no managed delivery plan was created for the July ...
Also starting about week 12, the thoracic diaphragm moves up and down as if the fetus were breathing, but this movement disappears about week 16 and does not resume until the third trimester. [16] Movements such as kicking continue, and the mother usually feels movement for the first time, an event called quickening, during the fifth month. [17]
Physiological factors impacting sleep at this stage during the pregnancy are nocturia, fetal movement, uterine contractions, heartburn, orthopnea, leg cramps, rhinitis, nasal congestion, and sleeping position. [2] Women at the third trimester report progressively reduced total sleep time, and similarly to the second trimester, being ...
Fetal position (British English: also foetal) is the positioning of the body of a prenatal fetus as it develops. 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.
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