Body Cavities and Serous Membranes
Body Plan, Homeostasis and the Two-Semester Map · page 9
- Dorsal: cranial (brain) + vertebral (spinal cord)
- Ventral: thoracic + abdominopelvic, split by the diaphragm
- Thoracic: two pleural cavities + mediastinum
- Mediastinum: heart in pericardial cavity, great vessels, trachea, esophagus, thymus
- Abdominopelvic: abdominal + pelvic
Fist in a balloon: the fist is the organ, the balloon wall touching the fist is the visceral layer, the outer wall is the parietal layer, and the air inside is the serous cavity.
| Membrane | Covers |
|---|---|
| Pleura | lungs |
| Pericardium | heart |
| Peritoneum | abdominal organs |
Inflamed layers rub and hurt: pleurisy, pericarditis, peritonitis.
This page is from Anatomy & Physiology I and II: The Complete Notes.
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