American Academy of Professional Coders (AAPC) Practice Exam

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What type of body cavity contains the brain?

Spinal cavity
Cranial cavity
Pelvic cavity
Thoracic cavity

The correct answer is: Cranial cavity

The correct answer, the cranial cavity, is the space within the skull that houses and protects the brain. This cavity is formed by the bones of the cranium and serves as a protective enclosure, safeguarding the brain from physical injury while allowing space for its structure and function. The spinal cavity, although important for housing the spinal cord, is separate from the cranial cavity and does not contain the brain. The pelvic cavity contains reproductive organs, bladder, and rectum, and is not related to the brain. The thoracic cavity encompasses the chest area, including the lungs and heart, but does not involve the brain either. Thus, the cranial cavity is specifically designed for the protection and support of the brain, making it the most accurate choice.