Mesoderm lining the coelom forms mesothelium. Separation of Peritoneal and Pleural Cavities: In the adult, peritoneal and pleural cavities are separated by the diaphragm. The diaphragm isformed by a septum transversum, paired pleuroperitoneal folds, and somatic mesoderm.
Myth One. Myth: AIDS is mostly an African problem. Fact: Of the 42 million people around the world who live with HIV/AIDS, 70% are in sub-Saharan Africa. HIV/AIDS exists and is spreading in Africa in a socioeconomic context created by western colonialism and, more recently, western trade and economic policies.
1 50 percent of people living with HIV/AIDS are women. 2  88 percent of all children and 60 percent of all women living with HIV are in sub-Saharan Africa.  6.3 million children died in 2013 â 17,000 a day- mostly from preventable health issues such as malaria, diarrhea and pneumonia.