Answer
The cranial cavity encloses the brain. It is the largest cavity of the skull. The average size is about 1,350 cc
Other cavities of the skull include the following:
a.The orbits : these are the eye sockets and contain the eyeballs
b. The nasal cavities of the nose
c. The oral or buccal cavity ( mouth cavity)
d. Cavity of the middle ear; contains malleus, incus and stapes
e. Inner ear cavity; contains the cochlea and the semicircular canals
Work Step by Step
The paranasal sinuses are named after the bones in which they occur: they include the frontal sinuses, the sphenoid sinuses, the ethmoid sinuses and the maxillary sinuses.
