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.
HIV Myth 3: 'I Donât Need to Worry â HIV/AIDS Only Infects Gay Men'. This couldn't be further from the truth. HIV is transmitted through an exchange of body fluids, specifically semen, vaginal fluids, breast milk, blood or pre-ejaculatory fluids. Most men become HIV-positive through sexual contact with other men.
Advanced Symptoms of HIV/AIDS. As HIV progresses, there may be bouts of diarrhea, nausea, vomiting, and weight loss. Other symptoms include severe headache, joint pain, and muscle aches. Shortness of breath, chronic cough, and difficulty swallowing are not uncommon. In the later stages, HIV can lead to short-term memory loss, mental confusion, and coma. The most advanced stage of HIV is called acquired immune deficiency syndrome (AIDS). At this stage, the immune system is severely compromised and infections become increasingly difficult to fight off.