Synnytyskanava

Synnytyskanava refers to the passage through which a baby travels during childbirth. It comprises the mother's pelvis, cervix, and vagina. The pelvis provides the bony framework, while the cervix, the lower part of the uterus, must dilate significantly to allow passage. The vagina, a muscular tube, then stretches to accommodate the baby's descent. During labor, muscular contractions of the uterus push the baby downwards, and the baby's head, typically the first part to emerge, molds to fit the contours of the birth canal. The size and shape of the mother's pelvis, as well as the baby's position and size, are critical factors influencing the progress of labor through the synnytyskanava. In some cases, medical interventions may be necessary if the baby cannot pass through the birth canal effectively.