Body Cavities | Lecture Note

University:
Northeastern University
Course:
HIST 3940 | European History
Academic year:

2025
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0

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1
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Body Cavities The abdominopelvic cavity encompasses everything deep to the abdominal and pelvic walls. It is divided into two portions: the abdominal cavity, which contains numerous digestive glands and organs, and the pelvic cavity, which houses the urinary bladder, reproductive organs, and the last portion of the digestive tract. Peritoneal Cavity The abdominal cavity includes the peritoneal cavity, which is lined by a serous membrane known as the peritoneum. Some organs, such as the kidneys, are positioned retroperitoneally, meaning they lie posterior to the peritoneal membrane. Other organs, like the urinary bladder, are described as infraperitoneal since they extend inferior to the peritoneal cavity. Abdominopelvic Quadrants Medical personnel primarily use quadrants to divide the abdominopelvic area into four sections: Abdominopelvic Regions In addition to quadrants, the abdominopelvic cavity can be sectioned into nine regions, which are often used by anatomists. These regions are organized similarly to a tic-tac-toe grid: Each region is delineated by four planes for clarity and is essential for identifying locations of various organs in the abdominopelvic cavity. Anatomical Associations A variety of organs are associated with specific abdominopelvic regions, providing a clear mapping for diagnostic purposes. Examples of organ locations include: