High-Yield Gross Anatomy, Fourth Edition offers the necessary information necessary for USMLE Step 1 review and course learn. It is written from a clinical perspective to prepare students for clinical vignettes on the USMLE and thoroughly illustrated together with drawings and radiographic pictures. This edition consists of new tables on upper and lower extremity innervation. Pictures have been located closer to the appropriate topic, and keys in legends have been replaced by full labels on pictures. Many of the CTs and MRIs have been enlarged. Paragraphs of topic are extra concise.