7/18/2019 Anatomy of the Head

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ANATOMY OF THE HEAD, FACE AND NECK  _____________________________________________________________________________________ Bones of the SkullComposition

• Sutures – unite the separated bones of the skull

• sutural ligament - connective tissue between the bones

• mandible - exception to this rule; united to the skull by the mobiletemporomandibular joint

• can be divided into the cranium and those of the face

• vault - upper part of the cranium

• base - lowest part of the cranium

• diploa – separates the external and internal tables of compact bones in theskull

• internal table - thinner and more brittle than the external table

• bones are covered surfaceswith periosteum

• cranium  consists of thefollowing bones, two of whichare paired

o !rontal bone "o #arietal bones $o %ccipital bone "o  &emporal bones $o Sphenoid bone "o 'thmoid bone "

• facial ones  consist of thefollowing, two of which aresingle

o (ygomatic bones $o )axillae $o *asal bones $o +acrimal bones $o omer "o #alatine bones $o nferior conchae $o )andible "

 _____________________________________________________________________________________ External Views of the Skull 

Anterior !ie" of the Skull

• frontal bone .forehead bone/ - curves downward to make the upper marginsof the orbits

• articulates with the frontal processes of the maxillae and with the nasalbones

• laterally, the frontal bone articulates with the 0ygomatic bone

• superciliary arches - seen on either side and the supraorbital notch .foramen/can be recogni0ed

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