Compatative anatomy Word Scramble
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Question | Answer |
neural spine | most dorsal,muscle attachment |
neural arch | protects spinal cord |
neural canal | contains nervous tissue |
hemal arch | blood vessels go through |
hemal spine | most ventral |
centrum | amphicoelous-biconcave spool"both hollow".few lateral processes.fish lateral flexion. |
centrum for land animals | stronger,flatter(acoelous).transverse processes for muscle attachment.zygapophyses-prevent torsion(cranial/caudal).disconnect from head to increase neck mobility.connect to pelvis to increase stability. |
amphibians | 1 cervical vert(atlis).1sacral vert.many trunk vert.zygapophyses.transverse processes |
vert regions | first seen in reptiles.cervical(neck),thoracic(ribs),lumbar (lower back), sacral(pelvis), caudal(tail). |
reptiles | cervical(atlas,axix,others).thoracic(have ribs for negative pressure breathing(enlarge thoratic cavity)),lumbar-no ribs,but they have specialized lumbar for increased flexability. sacral-2 or 3.caudal-many for balance and locomotion. |
birds | 15-20 cervical vert(long flexable neck).specialized synsacrum for pelvic support-fusion of trunk and sacral vert.w/pelvic girdle,good for bipedal.few caudal vert. |
mammals | cervical-7 vert(few exceptions).thoratic.lumbar.sacral are the fused sacrum(3-5 vert).caudal.loss of hermal arches ventrally.chevron bone is free floating remnant of hemal arch. |
Created by:
ejohnson17
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