High-Yield[trademark] Gross Anatomy, Fourth Edition provides the essential information needed for USMLE Step 1 review and course study. It is written from a clinical perspective to prepare students for clinical vignettes on the USMLE and thoroughly illustrated with drawings and radiographic images. This edition includes new tables on upper and lower extremity innervation. Images have been placed closer to the appropriate text, and keys in legends have been replaced by full labels on images. Many of the CTs and MRIs have been enlarged. Paragraphs of text are more concise.