DEV2022 Lecture Notes - Lecture 12: Peritoneal Cavity, Abdominal Cavity, Abdominal Wall
Document Summary
The abdominal pressure can be increased or decreased. The abdominal muscles also bring stability to the vertebral column via the attachment to the roots. When they contract or relax have an action upon the structures to which they are attached the trunk and the pelvis. Via the agency of the diaphragm, forms the top of the container of the abdominal cavity is essential in breathing. If you increase abdominal pressure, structures inside are influenced. The skin overlying the trunk and particularly the abdominal cavity is innervated in a dermatome type pattern. The abdominal cavity is not really a cavity" as there are no empty spaces. However, the space between organs is a cavity, where that cavity is filled with fluid. This cavity is completely closed in males from the external environment. In females, it is open to the external environment. The cavity is a sac, which is lined by a membrane.
