A 64-year-old man passes out near the emergency room door. A doctor rushes over to the patient and feels a strong pulse along the inner side of the left sternocleidomastoid muscle. Which of the following aortic arches is the vessel palpated by the doctor a derivative of?

Question

Quizplus · Accepted Answer

Eductional Objective: The third aortic arch gives rise to the common carotid artery and the proximal section of the internal carotid artery. The third aortic arch is connected to the third pharyngeal arch, which gives birth to the glossopharyngeal nerve (CN IX), hyoid bone sections, and the stylopharyngeus muscle.

A 64-Year-Old Man Passes Out near the Emergency Room Door