Vertebral column bone features
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how many thoracic vertebrae does a typical human have
12
how many lumbar vertebrae does a typical human have
5
how many cervical vertebrae does a typical human have
7
what is the name of the first cervical vertebrae that joins with the head and allows you to nod your head to indicate "yes"
atlas
what is the name of the second cervical vertebrae that allows you to rotate your head to indicate "no"
axis
