Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites and can spread between individuals. 1  Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites. 2  Microorganisms that cause disease are collectively called pathogens.
The Abdominopelvic Cavity The abdominopelvic cavity extends from the diaphragm to the pelvis. It is subdivided into a superior abdominal cavity and an inferior pelvic cavity (Figure 1-11a,c). The abdominopelvic cavity contains the peritoneal cavity, a chamber lined by a serous membrane known as the peritoneum.
Body cavities are covered with specialised lining cellsâe.g., mesothelial cells in the pericardium, peritoneum and pleura. Body cavity types. â¢ MajorâPericardial, pleural, peritoneal, cerebrospinal. â¢ MinorâAmniotic, anterior chamber of the eye, cul de sac, hydrocele, oral cavity, synovial, vitreous.ny of the spaces in the human body that contain organs. One major cavity, the thoracic cavity, is subdivided into a pericardial and two pleural cavities. Any space in the body that does not freely communicate with the outside.