Anth 2010 Important terms and concepts II.docx - Anth 2010...

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Anth 2010: Important terms and concepts II FOR MIDTERM 2: Locomotion & Diet Quadrupedal Bipedal Pronograde: back horizontal to the ground; EX: dog Orthograde: back perpendicular to ground, (right angle); EX: chimp and human What does each of the following skeletal features tell you about the animal’s locomotor behavior? (Think of it in terms of the above-listed four terms and/or sexual dimorphism and/or diet- check here if you need help: eSkeletons.org) Foramen magnum position Masseter muscle attachment location/size: cheek bone to bottom of jaw Nuchal (neck) muscle attachment location/size: attached at back of head and goes down neck Brow ridge: Cranial capacity—cubic centimeters: small; medium; huge—humans, big forehead, frontal lobes & bones; measures inside skull with liquid Front lobe/bones size: Incisor tooth orientation: procumbent - chimp, teeth stick out at angle vertical – humans Canine tooth size: large—chimp; small—human (no dimorphic canine.) Premolar honing facet: place where they sharpen their teeth (on other teeth); chimps Simian shelf or chin: plate under teeth (ape); no plate just a chin (humans) What does each of the following skeletal features tell you about the animal’s locomotor behavior? (Think of it in terms of the above-listed four terms and/or sexual dimorphism and/or diet- check here if you need help: Length of lumbar region: lumbar lordosis (from being bipedal); length of lumbar region and number of lumbar vertebrae Humeral head torsion:

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