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: If Iâm diagnosed with HIV, my life is over. Fact: Having HIV does not automatically mean you have AIDS. Many years may pass before people with the virus feel ill or develop the disease. Many people now live long and active lives with HIV because of medical advancements.
History overview. KEY POINTS: The history of the HIV and AIDS epidemic began in illness, fear and death as the world faced a new and unknown virus. However, scientific advances, such as the development of antiretroviral drugs, have enabled people with access to treatment to live long and healthy lives with HIV.