WBR0334
| Author | [[PageAuthor::Rim Halaby, M.D. [1]]] |
|---|---|
| Exam Type | ExamType::USMLE Step 1 |
| Main Category | |
| Sub Category | |
| Prompt | [[Prompt::A 45 year old man sustains a motor vehicle collision and is brought by the EMS to the emergency department. He complains of headache, severe nausea, and weakness of his upper extremity. Immediate CT-scan is performed and shows the findings in the image below. The injured artery in this patient is derived from which aortic arch?]] |
| Answer A | AnswerA::1st |
| Answer A Explanation | AnswerAExp::The maxillary artery is derived from the 1st aortic arch. |
| Answer B | AnswerB::2nd |
| Answer B Explanation | AnswerBExp::The stapedial and hyoid arteries are derived from the 2nd aortic arch. |
| Answer C | AnswerC::3rd |
| Answer C Explanation | AnswerCExp::The common carotid artery and the proximal segment of the internal carotid artery are derived from the 3rd aortic arch. |
| Answer D | AnswerD::4th |
| Answer D Explanation | AnswerDExp::The aortic arch and the proximal part of the right subclavian artery are derived from the 4th aortic arch. |
| Answer E | AnswerE::6th |
| Answer E Explanation | AnswerEExp:: |
| Right Answer | RightAnswer:: |
| Explanation | [[Explanation:: Educational Objective: |
| Approved | Approved::No |
| Keyword | |
| Linked Question | Linked:: |
| Order in Linked Questions | LinkedOrder:: |