O&A Head Flashcards
What does the lateral ligament of the mandible restrict?
Lateral and posterior motion
What results with protrusion of the mandible?
Superior translation of Condyles
What occurs in depression or opening of the mouth?
Rolling of inferior articular cavity
Translation of superior articular cavity
What occurs in lateral deviation of the mandible?
Anterior translation of contralateral side
Slight posterior translation of ipsilateral side
What is the primary movement of the inferior joint cavity of the TMJ joint?
Rotation
What is the primary movement of the superior joint cavity of the TMJ joint?
Translation
What forms the inferior surface of the inferior joint cavity of the TMJ joint?
Condyle
Where are the anterior fontanelle present in infancy?
Between halves of frontal bone and the right and left parietal bones
Neurocranium
Bony case of the brain and its membranous coverings, the cranial meninges (contains nerves and vasculature of the brain)
What makes up the cranium?
Calvaria (skull cap)
Cranial base (floor)
Viscerocranium
Comprises the facial bones and forms anterior part of cranium
What make up the facial aspects of the head?
Orbital cavities
Nasal cavities
Zygomatic arch
Orbital cavities
Consists of the nasal cavities and paranasal sinuses
Nasal cavities
Hollow spaces in the skull around the nose
Zygomatic arch
Formed by the Union of temporal process of zygomatic bone and zygomatic process of the temporal bone