Infants 0 to 2 years of age sleep an average of 12.8 hours a day, a lthough this changes and develops gradually throughout an infant’s life. for the first three months, newborns sleep between 14 and 17 hours a day, then they become increasingly alert for longer periods of time. The first stage of labor is typically the longest. during this stage the cervix or opening to the uterus dilates to 10 centimeters or just under 4 inches (see figure 2.16). this may take around 12 16 hours for first children or about 6 9 hours for women who have previously given birth. labor may also begin with a discharge of blood or amniotic.
During this stage, the cervix or opening to the uterus dilates to 10 centimeters or just under 4 inches. this may take around 12 16 hours for first children or about 6 9 hours for women who have previously given birth. it takes one woman in 9 over 24 hours to dilate completely. Introduction to birth and delivery what you’ll learn to do: describe approaches to childbirth and the labor and delivery process. what comes to your mind when you think about a woman giving birth? some may describe it as beautiful, a miracle, and a rite of passage. others may think of pain, fear, and discomfort. labor and delivery are not. Between the 7th – 9th months, the fetus is primarily preparing for birth. it is exercising its muscles and its lungs begin to expand and contract. the fetus gains about 5 pounds and 7 inches during this last trimester of pregnancy, and during the 8th month a layer of fat develops under the skin. At the end of the 12th week, the fetus is about 3 inches long and weighs about 28 grams. at about 16 weeks, the fetus is approximately 4.5 inches long. fingers and toes are fully developed, and fingerprints are visible. during the 4 6th months, the eyes become more sensitive to light and hearing develops.
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