over 650 muscles must be committed to memory, along with their sites of origin and insertion, their nerve supply and their actions; more than 220 named nerves, their root values and whether they are autonomic, cranial, spinal, sensory or motor; hundreds of named arteries and veins that spread in an arborescent pattern from the heart and back again, their origins, their divisions and the related soft-tissue structures. Then there are the 360-plus joints, and don’t get me going on the three-dimensional relations of the developing gut, tissue embryology, neuroanatomy and its tracts.
