FRHD 1020 Chapter Notes - Chapter 3: Sound Localization, Evaporated Milk, Retina
22 Feb 2013
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Oxytocin: hormone released by pituitary gland that causes labour to begin. Stage 1: labour- longest and most taxing stage, averaging about 12 hours for first births and 6 hours for subsequent births. Contractions increase in duration, frequency, and intensity, causing the cervix to dilate. Usually takes half and hour to an hour, but there is a wide variation. The mother pushes, and the baby crowns and then exits the birth canal and enters the world. Stage 3: expelling of placenta and umbilical cord. Contractions continue as the placenta and umbilical cord is expelled. Episiotomy: incision to make the vaginal opening larger during birth process. Cultural and historical variations in birth beliefs and practices. Many traditional cultures have developed beliefs that it puts a woman in a state of being spiritually unclean. In some cultures, birth must take place away from where most people reside, so that others will not be contaminated by it.
