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.
Bed bugs are found in cracks and crevices, including mattress seams, sheets, furniture, behind baseboards, electrical outlet plates and picture frames. Often found in hotels, where they can travel from room to room and in visitorsâ luggage or other personal belongings such as purses and briefcases.