ANATOMY SHELF NOTES UPDATE: 100 MOST IMPORTANT GA CONCEPTIONS  You can use this presentation like a guide during your preparing for final GA exam.

ANATOMY SHELF NOTES UPDATE: 100 MOST IMPORTANT GA CONCEPTIONS  You can use this presentation like a guide during your preparing for final GA exam.  It does NOT cover all the material of the Gross Anatomy course.  To complete GA material you have to work with ALL professor’s presentations.  Good Luck and All the best! @bestsolutionsDOCX ANATOMY SHELF NOTES UPDATE : 100 MUST IMPORTANT GA CONCEPTIONS 1. Lumbar puncture (tap) and Epidural anesthesia When a lumbar puncture is performed, the needle enters the subarachnoid space to extract cerebrospinal fluid (spinal tap) or to inject anesthetic (spinal block) or contrast material. The needle is usually inserted between L3/L4 or L4/L5. Level of horizontal line through upper points of iliac crests. Remember, the spinal cord may end as low as L2 in adults and does end at L3 in young children and dural sac extends caudally to level of S2. Before the procedure, the patient should be examined for signs of increased intracranial pressure because cerebellar tonsils may herniate through the foramen magnum.