syntymäreitti
Syntymäreitti refers to the passage a baby takes through the birth canal during vaginal childbirth. It encompasses the entire journey from the uterus, through the cervix, vagina, and perineum, to the external world. This process involves a complex interplay of physiological mechanisms. The baby's head undergoes molding, a temporary change in shape, to navigate the maternal pelvis. The mother's pelvic bones and soft tissues also adapt to facilitate the passage. The duration of the birth canal journey can vary significantly depending on factors such as the baby's size, position, and the mother's pelvic structure and uterine contractions. Once the baby emerges, the umbilical cord is typically clamped and cut. The concept of the birth canal is central to understanding natural childbirth and the physiological adaptations that occur during labor and delivery.