Gross Anatomy USMLE Step 1 Practice Questions
82 board-style USMLE Step 1 questions in Anatomy. Each question shows the correct answer; create a free account for the full explanation and adaptive practice.
- USMLE Step 1 · hard25. A 39-year-old man sustains a skull base fracture involving the foramen ovale after blunt head trauma. Vital signs show BP 128/82 mmHg, HR 88/min, RR 16/min, temp 37.2°C, SpO2 98…
- USMLE Step 1 · medium26. A 29-year-old woman presents to the ED with vertical diplopia after striking her head on a low doorway. Vital signs: BP 128/82, HR 88, RR 16, Temp 37.2°C, SpO2 98% on room air.…
- USMLE Step 1 · medium27. A 46-year-old woman presents three days after tonsillectomy with severe throat pain and dysphagia. Vital signs: BP 128/82, HR 92, RR 16, Temp 37.2°C, SpO2 98%. Physical examinat…
- USMLE Step 1 · easy28. A 58-year-old man undergoes carotid endarterectomy for severe left carotid stenosis. Postoperatively, he is hemodynamically stable (BP 138/82, HR 78, RR 16, SpO2 98% on room air…
- USMLE Step 1 · hard29. A 33-year-old man sustains a posterior knee dislocation during a motorcycle crash. On examination, his blood pressure is 128/82 mmHg, heart rate 102 bpm, and the affected leg sh…
- USMLE Step 1 · easy30. A 28-year-old man presents after a motor vehicle collision in which his flexed knee struck the dashboard. He reports knee pain and instability. Vital signs show BP 128/82 mmHg,…
- USMLE Step 1 · easy31. A 19-year-old male soccer player plants his foot and pivots suddenly, hearing a pop followed by rapid knee swelling. Vital signs: BP 118/76, HR 92, RR 16, Temp 37°C, SpO₂ 98% RA…
- USMLE Step 1 · medium32. A 44-year-old man receives an intramuscular injection in the inferomedial quadrant of the buttock. He subsequently develops marked weakness of knee flexion and ankle dorsiflexio…
- USMLE Step 1 · medium33. A 60-year-old woman undergoes surgical stripping of the great saphenous vein for varicose veins. Postoperatively, she presents with numbness along the medial leg and medial foot…
- USMLE Step 1 · medium34. A 55-year-old woman with long-standing pes planus presents with burning pain and numbness on the plantar foot surface worsening after prolonged standing. Vital signs: BP 128/82,…
- USMLE Step 1 · medium35. A 52-year-old man undergoes coronary artery bypass grafting with a sensory nerve harvested from his leg for graft material. Postoperatively, vital signs are stable (BP 128/82, H…
- USMLE Step 1 · medium36. A 31-year-old male runner sustains an inversion ankle injury while running. He presents with numbness over the dorsum of the foot and weak foot eversion. Vital signs: BP 118/76,…
- USMLE Step 1 · medium37. A 26-year-old woman sustains a laceration to the anterior ankle. Vital signs are stable (BP 118/76, HR 82, RR 16). Physical examination reveals weakness of foot dorsiflexion and…
- USMLE Step 1 · easy38. A 45-year-old obese man wearing a heavy tool belt at work develops burning pain and numbness over the anterolateral thigh. Vital signs are stable (BP 138/88, HR 82, RR 16, Temp…
- USMLE Step 1 · easy39. A 3-year-old girl is brought to the clinic because she refuses to use her right arm after her older sibling pulled her by the hand. The elbow is slightly flexed and pronated, an…
- USMLE Step 1 · medium40. A 36-year-old competitive cyclist presents with numbness affecting the palmar aspect of the fifth digit and weakness when abducting his fingers. Vital signs are normal (BP 118/7…
- USMLE Step 1 · easy41. A 22-year-old man sustains a laceration to the dorsolateral wrist on broken glass. Vital signs: BP 118/76, HR 92, RR 16, Temp 37°C, SpO2 98%. Brisk bleeding occurs from a vessel…
- USMLE Step 1 · medium42. A 7-year-old boy falls from playground equipment and lands on his outstretched hand. Radiographs show a supracondylar fracture of the humerus. His forearm is cool, radial pulse…
- USMLE Step 1 · easy43. A 49-year-old woman undergoes axillary lymph node dissection for breast cancer. Postoperatively, she presents with inability to forcefully extend and adduct her right arm, limit…
- USMLE Step 1 · medium44. A 32-year-old woman undergoes excision of a posterior cervical triangle mass. Postoperatively, she reports difficulty retracting her scapula medially toward the spine. Vital sig…
- USMLE Step 1 · medium45. A 27-year-old volleyball player presents with 3-month history of posterior shoulder pain and weakness after repeated overhead serving. Vital signs: BP 118/76, HR 82, RR 14, Temp…
- USMLE Step 1 · medium46. A 41-year-old carpenter presents with progressive weakness of finger extension following repetitive screwdriver use. Vital signs are normal (BP 128/82, HR 72, RR 14, Temp 37°C).…
- USMLE Step 1 · medium47. A 34-year-old woman develops forearm pain and hand weakness after a supracondylar fracture is placed in a cast. When asked to make an OK sign, she presses the pads of the thumb…
- USMLE Step 1 · easy48. A 23-year-old man is brought to the emergency department after a knife wound to the anterior shoulder. He reports difficulty lifting objects with the affected arm. Examination s…