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Childbirth Stations of Presentation Video
The animation follows the baby's
progress through the mother's birth canal, marking the baby's position by how her head lines up with specific points in the mother's bony pelvis. These points are called vertex positions, and use the designations +3, +2, +1, 0, -1, -2 -3 in what obstetricians (OB/GYNs) call the 1/3 system.
Natural Vaginal Child Birth Delivery Videos
The fetus undergoes a series of changes in position, attitude, and presentation during labor. This process is essential for the accomplishment of a vaginal delivery. The presence of a fetal malpresentation or an abnormality of the maternal pelvis can significantly impede the likelihood of a vaginal delivery. The contractile aspect of the uterus is another essential aspect of this process. This combination of factors has been classically described as the passenger (the fetus), the passage (the maternal pelvis) and the powers (the uterine contractions). This chapter addresses the impact of the fetus and the maternal pelvis on the labor process.
Normal Vaginal Delivery video
The delivery of a full-term newborn refers to delivery at a gestational age of 37-42 weeks, as determined by the last menstrual period or via ultrasonographic dating and evaluation. The Naegel rule is a commonly used formula to predict the due date based on the date of the last menstrual period. This rule assumes a menstrual cycle of 28 days and mid-cycle ovulation. Ultrasonographic dating can be more accurate, especially when it is performed early in pregnancy and is used to corroborate or modify a due date based on the last menstrual period.
Fetal Development Through Ultrasound video
After fertilization, the process of embryogenesis, (the early stages of prenatal development) begins. By the end of the tenth week of gestational age the embryo has acquired its basic form and the next period is that of fetal development where the organs become fully developed. This fetal period is described both topically (by organ) and chronologically (by time) with major occurrences being listed by gestational age.
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