How the Mother's soft and bony pelvic structures influence fetal descent Flashcards
The soft birth canal consists of
The lower uterine segment, cervix, the vagina, and the surrounding muscles and other soft tissues framed by the bony pelvis
How could the curve of the dilated birth canal follow
The upper portion of the dilated birth canal curves slightly, the middle part of the birth canal in the region of the ischial spines begin to curve forward, the lower part in the region of the tuberosities forms an angle of about 90 degrees with the upper part. this angle is less acute in multips
What 3 muscular gates does the baby need to pass through?
the cervix, the muscles of the Levator Ani sling, and the genital opening (urogenital diaphragm, perineum, and vulva)