Label the Circle of Willis
(1) Anterior communicating, (2) Anterior cerebral, (3) Middle cerebral,
(4) Internal carotid, (5) Posterior communicating, (6) Posterior cerebral
(7) Superior cerebellar, (8) Basilar, (9) Anterior inferior cerebellar (AICA),
(10) Vertebral, (11) Posterior inferior cerebellar (PICA), (12) Anterior spinal
Label the vertebrae
(A) Body, (B) Pedicle, (C) Superior articulating facet, (D) Inferiot facet,
(E) Transverse process, (F) Spinous process, (G) Lamina
How many cervical vertebrae? Nerve roots?
7 vertebrae, 8 nerve roots
How many thoracic vertebrae? Nerve roots?
12 vertebrae and nerve roots
How many lumbar vertebrae? Nerve roots?
5 vertebrae and nerve roots
How many sacral vertebrae? Nerve roots?
5 fused 'vertebrae' and nerve roots