Wrist and Hand Bones - Carpals, Metacarpals and Phalanges Anatomy

Learn the anatomical structure and organization of the bones in the wrist and hand through this comprehensive 10-minute anatomy tutorial. Explore the eight carpal bones arranged in proximal and distal rows, including the scaphoid, lunate, triquetrum, and pisiform in the proximal row, and the trapezium, trapezoid, capitate, and hamate in the distal row. Master the identification of each bone's unique features, articulations, and clinical significance, including common fracture patterns like scaphoid fractures and hook of hamate injuries. Examine the five metacarpal bones that form the palm, understanding their structural components of base, shaft, and head, with special attention to the first metacarpal's saddle-shaped articulation that enables thumb opposition. Study the 14 phalanges distributed across the fingers, distinguishing between proximal, middle, and distal phalanges, and learn why the thumb lacks a middle phalanx. Discover the role of sesamoid bones, particularly at the first metacarpophalangeal joint, and their function as biomechanical levers. Utilize the mnemonic "Scary Lions Try Pizza, Then They Chase Hamsters" to memorize the carpal bone sequence from lateral to medial. Gain insights into clinical relevance including common injuries, radiological findings from population studies, and the anatomical basis for hand function and pathology.