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Bony skeleton of head, rests on the superior end of vertebral column and is divided into two main sets.
the bone of the calvaria that is most readily visible is...it forms the forehead and the superior part of each orbit. Consists of two main parts
supraorbital groove (SOG)
slight depression above each eyebrow. Corresponds to the floor of the anterior fossa of the cranial vault.
Small hole or opening within the supraorbital margin slightly medial to its midpoint.
frontal tuberosity (eminence)
located on each side of the squamous portion of the frontal bone above the supraorbital groove, its a large round prominence. AKA Forehead
supraorbital margins, superciliay ridges, glabella, and frontal tuberosities.
right and left parietals, sphenoid, and ethmoid
the frontal bone articulated with what four cranial bones.
large opening at the base of the occipital bone through which the spinal cord passes.
lateral oval processes with convex surfaces with one on each side of the foramen magnum.
sits inferior to the zygomatic process and anterior to the EAM, it forms the TMJ (temporomandibular joint)
projecting inferior to the mandible and anterior to the EAM is a slender bony projection called,
small upper horizontal portion of the ethmoid bone which contains many small openings or foramina through which segmental branches of the olfactory nerves pass.
formed by the inferior junction of the two parietal bones with their respective temporal bones
the right and left (pterions or asterions) points at the junction of the parietals, temporals, and the greater wings of the sphenoid
the right and left (pterions or asterions) are points posterior to the ear where the squamosal and lamdboidal sutures meet
early in life the the bregma and the lambda are not bony but are membrane covered ______________
parietal, frontal, occipital
a general rule for describing skull type is to compare the width of the skull at the _________ eminence with the length mesaused from the _______ eminence to the external _________ protuberance.
a second variation to remember is the ______ ________ between the petrous pyramid and the midsagittal plane.
greater than 47
in the brachycephalic skull, the angle is (greater than 47 or lesser than 47) degrees.
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