Skull Cavities and Fontanelles
Cavities in the skull
• Cranial cavity is a largest cavity, it encloses and supports the brain
• Orbits contain eyeballs
• Nasal cavity
• Paranasal sinuses: The frontal, maxillary, ethmoid, and sphenoid bones contain
the paranasal sinuses.
The mastoid bone contains air cells
• Middle and inner ear cavity
• Oral cavity (mouth)
Cavities in the skull
• Cranial cavity is a largest cavity, it encloses and supports the brain
• Orbits contain eyeballs
• Nasal cavity
• Paranasal sinuses: The frontal, maxillary, ethmoid, and sphenoid bones contain
the paranasal sinuses.
The mastoid bone contains air cells
• Middle and inner ear cavity
• Oral cavity (mouth)