Chapter·AnatomyAutonomic nervous system anatomy

Sympathetic trunk anatomyDownloads

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1

A 68-year-old male is diagnosed with squamous cell carcinoma in the upper lobe of his right lung. A chest radiograph can be seen in image A. Which of the following would you most expect to find in this patient?

AAnisocoria

BSuperior vena cava syndrome

CDigital clubbing

DPolydipsia

ELateral gaze palsy

2

A 50-year-old man presents to his primary care provider complaining of double vision and trouble seeing out of his right eye. His vision started worsening about 2 months ago and has slowly gotten worse. It is now severely affecting his quality of life. Past medical history is significant for poorly controlled hypertension and hyperlipidemia. He takes amlodipine, atorvastatin, and a baby aspirin every day. He smokes 2–3 cigarettes a day and drinks a glass of wine with dinner every night. Today, his blood pressure is 145/85 mm Hg, heart rate is 90/min, respiratory rate is 14/min, and temperature is 37.0°C (98.6°F). On physical exam, he appears pleasant and talkative. His heart has a regular rate and rhythm and his lungs are clear to auscultation bilaterally. Examination of the eyes reveals a dilated right pupil that is positioned inferolateral with ptosis. An angiogram of the head and neck is performed and he is referred to a neurologist. The angiogram reveals a 1 cm berry aneurysm at the junction of the posterior communicating artery and the posterior cerebral artery compressing the oculomotor nerve. Which of the following statements best describes the mechanism behind the oculomotor findings seen in this patient?

AThe parasympathetic nerve fibers of this patient’s eye are activated.

BThe sympathetic nerve fibers of this patient’s eye are inhibited.

CThe unopposed inferior oblique muscle rotates the eye downward.

DThe unopposed superior oblique muscle rotates the eye downward.

EThe unopposed medial rectus muscle rotates the eye in the lateral direction.

3

A 72-year-old man presents to his primary care physician because he feels like his vision has been changing over the last 6 months. In particular, he feels that he cannot see as well out of his right eye as previously. His past medical history is significant for myocardial infarction as well as Lyme disease. On presentation, he is found to have a droopy right eyelid as well as persistent constriction of his right pupil. Additionally, the skin on his right half of his face is found to be cracked and dry. Which of the following is most likely associated with this patient's symptoms?

AOculomotor nerve damage

BDrug use

CSyphilis

DFacial nerve damage

EPancoast tumor

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