The knowledge of the mammalian central nervous pared by Ms. Anne Dunn. I am truly grateful for system has increased dramatically during the last their contributions. decade, which has provided a major impetus for A caveat is in order for the first 5 figures in preparing the second edition of The Human Brain Chapter 10, which represent cross-sections through and Spinal Cord. For the medical profession this has different levels of the brainstem. Considering the been a revolutionary time, since modem imaging rapidly expanding reliance on in vivo imaging by the methods have provided unparalleled opportunities clinicians, figures 10-1 to 10-5 are presented with for anatomical and functional studies of the human the posterior parts of the brainstem facing down­ body in vivo. It is now essential for the clinician to wards, since this is the way the brainstem images have an intimate knowledge of anatomy including appear in axial MRls routinely used by neuro­ the functional-anatomical systems in the brain radiologists (see Chapter 5). This somewhat un­ and spinal cord. The new edition of this textbook conventional approach, suggested by Dr. Duane reflects this progress in the sense that almost all of Haines, is directly relevant for the transfer of basic the chapters have been rewritten and several new science information to clinical practice. All other figures have been included.