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 2: 'HIV and AIDS Are the Same Thing'. Absolutely not. HIV is the virus that infects a person and attacks the immune system. AIDS is the disease that develops later in people with HIV that remain untreated or don't respond to treatment.
Rumors, Myths and Hoaxes About HIV/AIDS. ...which may frighten the public, are being circulated on the Internet. Human immunodeficiency virus (HIV), the virus that causes AIDS, is spread by sexual contact (anal, vaginal, or oral) or by sharing needles and/or syringes with someone who is... Read more Â».