The body cavity that houses the brain is the

• A. Spinal
• B. Cranial
• C. Abdominal
• D. Pelvic

Answer: (B)

The brain sits inside the cranial cavity, a protected space formed by the skull and part of the dorsal body cavity. This cavity houses the brain and is continuous with the spinal cavity through the foramen magnum, where the spinal cord runs. The other options fit different structures: the spinal cavity contains the spinal cord; the abdominal and pelvic cavities hold digestive and other visceral organs. So the brain’s home is the cranial cavity.