DHUBS 2 Week 1 - Face and Skull Flashcards
Can you identify the bones of the skull?
Frontal bone
Nasal bone
Lacrimal bone
Zygomatic bone
Maxillary bone
Parietal bone
Nasion
Sphenoid bone
Temporal bone
Ethmoid bone
Inferior nasal concha
Vomer
Mandible
Which cranial bones contribute to the roof of the skull?
The frontal bone
2 parietal bones
occipital bone
Name the main sutures on the roof of the skull?
Frontal
Sagittal
Lamboidal
Which bones contribute to forming each suture?
Frontal = joining of the frontal lobe with the parietal lobes
Sagittal = joining of the two parietal lobes
Lamboidal = joining of the parietal lobes and occipital lobe
Which bones contribute to the Pterion?
The frontal bone
The Temporal bone
The Parietal bone
The Sphenoid bone
Why is the Pterion important?
The Pterion is the thinnest part of the skill. It supplies Dura Mater.
What bone forms the upper jaw?
The Maxilla
What are the main muscles of mastication?
Masseter
Temporalis
Lateral Pterygoid
What nerve innervates these muscles?
The Mandibular Nerve
What are the actions of the masseter?
Elevation and protrusion of the mandible
What are the actions of the Temporalis?
Anterior fibers: elevation of mandible
Posterior fibers: retraction of mandible
What is the action of the lateral pterygoid?
Depression and protrusion of the mandible.
