Page 354 - Clinical Anatomy
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ECA6  7/18/06  6:54 PM  Page 339






                                                                                   The brain   339



























































                                        Fig. 239◊(a) The lumbar interlaminar gap when the spine is flexed; this anatomical
                                        fact makes lumbar puncture possible. The locations of the spines of L2 and L4 in the
                                        extended position are shown cross-hatched. (b) The anatomy of lumbar puncture.

                                        The brain



                                        The medulla

                                        The medulla is 1in (25mm) in length and about 0.75in (18mm) in diameter.
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