BT_RA 1.4 Describe the anatomy of the vertebral column spinal cord and meninges relevant to the performance of central neuraxial block with appropriate surface markings.

Ellis and Lawson’s “Anatomy for anaesthetists” is worth a read through for some of the key areas of anatomy pertinent to anaesthetists. The answers to all of these are available there. In the exam you will be quizzed on a pretty narrow range of anatomy as it’s not easy to examine in a clinically relevant way without resorting to recollection of ‘factoids’. However, given the frequency with which you stick long sharp things into people’s spines, blindly aiming for a spot half the size of your little fingernail at seemingly ever-increasing distances from the surface, it behoves you to be au fait with the anatomy of the vertebral column and it’s contents.

T/F  the intercristal (Tuffier’s) line usually passes through the body of L3

T/F  the posterior rami of sacral nerves exit through the sacral hiatus

T/F  the dural sac terminates at L5/S1

T/F an epidural catheter advanced too far may exit the vertebral canal through an intervertebral foramen

T/F  the dural sac does not have posterior attachments

T/F  the subdural space is a potential space between the dura and arachnoid mater