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        | TRUE OR FALSE The skull is composed of three sets of bones
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        | enclose and protect the fragile brain tissue |  | 
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        | present the eyes in an anterior position and form thebase for the facial muscles |  | 
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        | most bones of the skull are joined by these interlocking joints |  | 
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        | attached to the rest of the skull by a freely movable joint |  | 
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        | anterior portion of cranium; forms foreheadm superior part of the orbit, and floor of anterior cranial fossa |  | 
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        | Supraorbital foramen (notch) |  | Definition 
 
        | opening above each orbit allowing blood vessels and nerves to pass |  | 
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        | smooth area between the eyes |  | 
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        | postolateral to the frontal bone, forming sides of cranium |  | 
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        | midline articulation point of the two parietal bones |  | 
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        | point of articulation of parietals with frontal bone |  | 
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        | inferior to parietal bone on lateral skull; can be divided into 4 major parts: the squamous region, tympanic region, mastoid region, & petrous region |  | 
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        | point of articulation on temporal bone with the parietal bone |  | 
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        | surrounds the external ear opening |  | 
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        | the area posterior to the ear |  | 
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        | forms the lateral portion of the skull base |  | 
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        | a bridgelike projection joining the cheekbone anteriorly. together these two bones form the " " arch |  | 
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        | rounded depression on the inferior surface of the zygomatic process (anterior to the ear); forms the socket for the madibular condyle, the point where the lower jaws joins the cranium |  | 
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        | canal leading to eardrum and middle ear; tympanic region marking |  | 
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        | needlelike projection inferior to external acoustic meatus; attachment point for muscles and ligaments of the neck; this process is often broken off demonstration skulls; tympanic region marking |  | 
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        | rough projection inferior and posterior to external acoustic meatus; attachment site for muscles |  | 
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        | mastoid process is full of air cavities and so close to the middle ear-a trouble spot for infections- often becomes infected too, a condition referred to as... |  | 
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        | TRUE OR FALSE The mastoid area is seperated from the brain by only a thin layer of bone
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        | an ear infection that has spread to the mastoid process can inflame the brain coverings, or... this condition is known as... |  | 
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        | most posterior bone of cranium-forms floor and back wall; joins sphenoid bone anteriorly via its narrow basioccipital region |  | 
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        | site of articulation of occipital bone and parietal bone |  | 
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        | large opening in base of occipital, which allows the spinal cord to join with the brain |  | 
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        | bat-shaped bone forming the anterior plateau of the middle cranial fossa across the width of the skull |  | 
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