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 cavities in the skull that contain the eyes. These cavities are formed from parts of the following bones (also mentioned below): frontal, ethmoid, lacrimal, maxillary, palatine, sphenoid, and zygomatic. air-filled cavities lined with mucous membranes located within some skull bones.