Anatomy Upper Limb (Demo)

A 25-year-old tennis player presents with pain and tenderness in her wrist following a fall onto an outstretched hand. Examination reveals tenderness in the anatomical snuffbox. Which of the following structures forms the floor of the anatomical snuffbox?

A 36-year-old man undergoes elective surgery for a lymph node biopsy in the supraclavicular region. Postoperatively, he reports difficulty shrugging his left shoulder and lifting his arm above his head. Which of the following is the most likely reason?

A 38-year-old man falls onto his outstretched hand while playing basketball. In the emergency department, tenderness is noted on palpation of the anatomical snuffbox. What is the most likely injury in this scenario?

A 12-year-old child is brought to the emergency department after falling while playing. Examination reveals a subluxation of the radial head, commonly known as a “nursemaid’s elbow.” Which ligament keeps the head of the radius connected to the radial notch of the ulna?

A 24-year-old man presents to the emergency department after falling onto his outstretched hand. Imaging confirms a fracture of the scaphoid bone. From which of the following areas does the scaphoid derive the majority of its blood supply?