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.
The right minor (horizontal) fissure separates the right upper lobe from the right middle lobe. The left major fissure separates the left upper lobe and lower lobe. Segmental anatomy has little relevance in plain chest radiography.The position of the various lobes on the frontal CXR is illustrated below.The figures illustrate the CXR appearance of consolidation of different lobes.he left major fissure separates the left upper lobe and lower lobe. Segmental anatomy has little relevance in plain chest radiography. The position of the various lobes on the frontal CXR is illustrated below. The figures illustrate the CXR appearance of consolidation of different lobes.