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.
Line the cavities within the body and secrete serous fluid.They can be found around organs that move a lot, such as the lungs, heart, stomach and intestines.Acts as a covering membrane within body cavities that do not open outside of the body. Consist of parietal layer and visceral layer. -Parietal layer â lines cavity.