Play is often considered a prerogative of children and only an occasional indulgence for adults. Its role in children's lives is generally recognized as an important part of 'being a child,' but it is not always clearly understood that play is an essential developmental mechanism.ots of Essays, Functions of Play in the Human Lifespan., LotsofEssays.com, http://www.lotsofessays.com/viewpaper/1693293.html (accessed October 19, 2015).
The First Stage of Labor. The first stage is the longest part of labor and can last up to 20 hours. It begins when your cervix starts to open (dilate) and ends when it is completely open (fully dilated) at 10 centimeters. When the cervix dilates from 0 to 3 or 4 centimeters, contractions get stronger as time progresses.
Highlights. 1  Preterm labor occurs when uterine contractions begin to open the cervix before 37 weeks of pregnancy. Preterm labor can lead to a premature birth, which poses many risks to a baby. 2  Terbutaline is a type of betamimetic used to stop contractions and delay the labor process.