To warm and humidify the inspired air; to lighten the skull; to enhance the resonance of the voice
Why is the sphenoid bone considered the keystone of the cranium?
It forms a wedge that articulates with all other cranial bones
Why are the maxillae considered to be the keystones of the facial bones
The maxillae articulate with all other facial bones except for the manidble
What ligament attaches to the external occipital crest?
ligamentum nuchae attaches here on the occipital lobe
With what do the occipital condyles articulate?
C1 or atlas or the first vertebrae of the vertebral column
In what way does a throat infection involve the mastoid and what makes this condition dangerous?
The mastoid is in a close proximity to the middle ear cavity which is close to infections in the throat. Only a thin bone separates the mastoid from the brain. A throat infection could spread from the throat to the middle ear to the mastoid cavity to the brain.
Name the 3 parts of the nasal septum
vomer, ethmoind, septal cartilage
Name the bones and processes that form the hard palate
The horizontal process of the palatine bone, and the palatine process of the maxillary bones
Name the bones and processes that form the zygomatic arch
The zygomatic process of the temporal bone and the temporal process of the zygomatic bone.
Name the 7 bones that contribute to the orbital cavity