[GROUP 1: Structure] - The adult human cranial cavity has a capacity of 1,200-1,700cm. - The cranial cavity consists of eight fused cranial bones: occipital, sphenoid, frontal, ethmoid, two parietal, and two temporal bones. - The spaces between the meninges and the brain are filled with cerebrospinal fluid, enhancing brain protection. - Facial bones are not included in the cranial cavity. - The cranial cavity is lined by three meninges: pia mater, arachnoid mater, and dura mater.

[GROUP 2: Function] - The cranial cavity houses the brain, meninges, and cerebrospinal fluid. - The brain supplies information to the body and helps regulate bodily functions. - The cranial cavity contains the pituitary gland, which secretes fluids important for bodily functions. - Twelve cranial nerves control the cranial cavity, providing sensory information for smell, taste, hearing, and sight. - The cranial cavity allows for functions like sleep and chewing.

[GROUP 3: Clinical significance] - Traumatic brain injuries, such as concussions, can occur if the brain strikes the inside of the skull, leading to memory loss, headaches, and nausea. - Infections in the cranial cavity can cause meningitis, a potentially fatal disease. - It is recommended to seek medical attention after a head injury to assess potential damage to the brain.

[GROUP 4: Related concepts] - Neurocranium - Intracranial pressure - Paranasal sinuses

[GROUP 5: References and external links] - Turchin, Valentin. The Phenomenon of Science. - Martini R, Ober W, Garrison C, Welch K, and Hutchings RT.2001. Fundamentals of Anatomy and Physiology, 5th ed. Prentice Hall, New Jersey. p. 195. - Wikimedia Commons has media related to Cranial cavity. - Anatomy of cranial cavity.