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15 terms

Body Cavities & Serosa

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Dorsal Cavity
Contains the cranial cavity and the vertebral canal; brain and spinal cord.
Cranial Cavity
A dorsal body cavity enclosed by the cranium, containing the brain.
Spinal Cavity
A dorsal body cavity within the spinal column that contains the spinal cord.
Ventral Cavity
Contains the thoracic, abdominal, and pelvic cavities.
Thoracic Cavity
Chest cavity that retains the heart and lungs.

Contains Pleural Cavity: A fluid-filled cavity between the parietal and visceral pleura surrounding the lungs.

Contains Pericardial Cavity: The space between the layers of the pericardium that contains fluid that lubricates the membrane surfaces and allows easy heart movement.
Abdominal Cavity
The body cavity that primarily houses parts of the digestive, excretory, and reproductive systems. It is separated from the more cranial thoracic cavity by the diaphragm.
Pelvic Cavity
Space below the abdomen containing portions of the intestines, rectum, urinary bladder, and reproductive organs.
Nasal Cavity
The cavity behind the nose and above the roof of the mouth that filters air and moves mucous and inhaled contaminants outward and away form the lungs.
Oral Cavity
Smaller cavity located inside the head; also known as the buccal cavity; contains the teeth and tongue.
Ear Cavity
Cavity containing the auditory components.
Parietal Serosa
The part of the membrane that lines the cavity walls. Usually the furthest away from the organ, parie=wall.
Visceral Serosa
Serous membrane that covers external surface of organs within the cavities.
Pleura
Covering of the lungs and thoracic cavity that is moistened with serous fluid to reduce friction during respiratory movements of the lungs.
Pericardium
Double-layered membrane surrounding the heart.
Peritoneum
The double-layered membrane that protects and supports the abdominal organs.

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