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.
The following list identifies the cavities and subcavities of the human body: Dorsal cavity: Bones of the cranial portion of the skull and vertebral column, toward the dorsal (posterior) side of the body. Cranial cavity: Contains the brain. Spinal portion: Contains the spinal cord, which is an extension of the brain.