Anatomy Question Set 1

A 60-year old female presents to the emergency room with a history of falling on her right elbow. She cannot raise her right arm. Physical exam reveals loss of sensation over the upper lateral side of the right arm and shoulder. Radiology reveals fracture of surgical neck of the humerus. Which of the following muscles is supplied by the nerve that is most likely damaged?

A 17-year-old boy presents to the emergency room with severe bleeding from his right hand. He was involved in a gang fight an hour ago where he received a penetrating stab wound by a sharp knife in the region of the 'anatomical snuff box'. Damage to which artery is most likely responsible for this excessive bleeding?

A 25-year-old male comes to his physician for a follow-up visit with weakness of his right hand. Two months ago, he suffered a motor vehicle accident in which his right hand was injured. On examination, he is unable to flex the metacarpophalangeal joints of the ring and index finger and is unable to adduct these fingers. Which of the following muscles are most likely paralyzed?

A 37-year-old obese female presents with pain in her left wrist and numbness, burning and tingling sensation in her left thumb, index, and middle finger and some part of her ring finger. The pain is severe and wakes her up at night. She works as a typist and pain increases after typing all day. Nerve conduction studies reveal nerve compression. Which of the following additional clinical findings would be present in this patient?

A 38-year-old female had an enlarged thyroid gland compressing the trachea. A partial thyroidectomy was suggested. During surgery, the young surgeon ligated the inferior thyroid arteries as close to the poles as possible to prevent intraoperative hemorrhage. After 14 days, the patient presents with persistent hoarseness of voice. The most likely cause could be:

A 39-year-old male presents with painless swelling of the right testes and sensation of heaviness. Physical exam reveals an intra-testicular solid mass that cannot be felt separately from the testis. After evaluation, he was diagnosed with testicular seminoma. Which of the following group of lymph nodes are most likely to be involved?

A 41-year-old female presents with back pain that radiates along the right leg posteriorly. This pain started suddenly after lifting a heavy box, 2 days back. Physical examination reveals straight leg raise (SLR) test restricted up to 30o, unable to walk on her toes, decreased sensation along the lateral border of right foot, and diminished ankle jerk. Which of the following nerve roots is most probably compressed?

A 52-year-old diabetic male presents with fever, headache, and excruciating pain in his right eye. On examination, vesicles are present in groups with an erythematous base on the upper eyelid, forehead, and nose on the right half of the face. The patient is diagnosed with herpes zoster infection. Which of the following nerves is most likely involved?

A 31-year-old female presents to you with difficulty in walking and climbing stairs for the last 3 weeks. Physical examination reveals a waddling gait, with her trunk swaying from side to side towards the weight-bearing limb. When she stands on her right leg, the pelvis on the left side falls; but when she stands on the left leg, the pelvis on the right side rises. Which of the following nerves is injured?

A 28-year-old woman presented with history of recurrent episodes of headache for last 3 years. The episodes were triggered by hunger, mental stress, physical exertion, and lack of sleep; although many times trigger was unidentified. The headache was usually unilateral, severe, throbbing type, and was aggravated by movement. The episodes usually lasted for 6 to 24 hours and were accompanied by nausea, vomiting, and intolerance to light. Which of the following brain regions is not involved in modulation of the trigeminovascular nociceptive input in the patient?