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: AIDS is not caused by HIV. DEBUNKING: This is the biggie, of course. As long ago as 1983, researchers first isolated HIV from people with AIDS. By 1985, they had developed a test showing that the overwhelming majority of people with AIDS have antibodies to HIV in their blood.
Shares & Saves. Save. HIV is the virus that causes AIDS. AIDS is a series of opportunistic infections that occur when the immune system is weakened by the HIV virus. HIV is a blood-borne pathogen and is transmitted through the exchange of bodily fluids, specifically, blood and semen.he most common routes of transmission are unprotected sex with an infected person and exposure to infected blood and blood products, where the blood comes in contact with broken skin. There is no cure for HIV or AIDS, so prevention is the best course of action.