Skull Features - Cranial vault Terms Pneumatic flaring...

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Skull Features
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Terms Sagittal Crest Casued by chewing muscles – found in robust Australopithecines Sagittal keel Slight keeling of parital bones– found in Homo erectus Supraorbital torus: Brow ridges – male Homo sapiens still exhibit this feature but to a much lesser extent than our ancestors
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Sagittal crest Sagittal keel Supraorbital torus
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Terms Receding symphysis Absence of chin – only Homo sapiens do not have this feature Post-orbital constriction Pinching in of the frontal part of the skull – decrease in constriction corresponds with an increase in brain size Cranial vault Forehead – or lack thereof – cranial vaulting increases in later hominid species
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Post orbital constriction Receding symphysis
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Unformatted text preview: Cranial vault Terms Pneumatic flaring Flaring of the occipital region found in early Australopithecines Occipital bun Found in Homo neanderthalensis helps to balance the head -- counterweight to the heavy facial bones Flat face indentation of the mid portion of the cranium Pneumatic flaring Occipital bun Flat face Terms Mid-face prognathism Jutting out of the mid portion of the face Prominent Zygomatic arches Large cheek bones Endocast Impressions of the interior of the cranium. This can show features of the brain and the vascular system. Mid face prognathism Prominent zygomatic arches Endocast...
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This note was uploaded on 04/15/2008 for the course ANTH 101 taught by Professor Staff during the Spring '03 term at San Diego State.

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Skull Features - Cranial vault Terms Pneumatic flaring...

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