The body cavities house internal organs,
collectively known as viscera. There are two primary body cavities: the larger
ventral (anterior) and the smaller dorsal (posterior) body cavities.
The ventral body cavity comprises the thoracic
cavity, which accommodates the lungs and heart, protected by the rib cage,
associated musculature, and the sternum anteriorly. It includes the right and
left pleural cavities and the mediastinum, which separates the left and right
lung.
The abdomino-pelvic cavity extends from the
diaphragm to the pelvic floor, divided into the superior abdominal and inferior
pelvic cavities by an imaginary line at the upper pelvis.
Within the abdominal cavity are the stomach,
intestines, liver, spleen, and gallbladder, while the pelvic cavity contains
the urinary bladder, rectum, and portions of the reproductive organs.
The dorsal body cavity consists of the cephalic
cavity containing the brain and the vertebral canal housing the spinal cord.
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| Body Cavity |
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