10 demographic trends that are shaping the U.S. and the world. By DâVera Cohn and Andrea Caumont25 comments. At its core, demography is the act of counting people. But itâs also important to study the forces that are driving population change, and measure how these changes have an impact on peopleâs lives. For example, how does immigration affect U.S. population growth?
Type of Incisions. TYPE OF INCISIONS Upper Midline The upper midline incision provides access to the esophagus, hiatus, stomach and. duodenum, pancreas, and hepatobiliary system. If extended, it allows major hepatic resection, adrenalectomy, and splenectomy.
surgical incision into or division of the vas deferens. surgical incision of the perineum to enlarge the vagina and so facilitate delivery during childbirth. laparotomy performed with a laparoscope that makes a small incision to examine the abdominal cavity (especially the ovaries and Fallopian tubes)