The posterior auricular lymph node lies superficial to which structure?

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Study for the History and Physical (Handamp;P) Exam 1. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

The posterior auricular lymph node lies superficial to which structure?

Explanation:
The key idea is the anatomic relationship of the posterior auricular lymph nodes to the mastoid region. These nodes sit in the superficial fascia behind the ear, in the groove between the ear and the mastoid process, directly overlying the mastoid part of the temporal bone. So they are superficial to that bony projection—the mastoid process. The other structures (zygomatic arch, parotid gland, occipital bone) are not the surface-to-bone relationship of these nodes, which is why the mastoid process is the correct structure.

The key idea is the anatomic relationship of the posterior auricular lymph nodes to the mastoid region. These nodes sit in the superficial fascia behind the ear, in the groove between the ear and the mastoid process, directly overlying the mastoid part of the temporal bone. So they are superficial to that bony projection—the mastoid process. The other structures (zygomatic arch, parotid gland, occipital bone) are not the surface-to-bone relationship of these nodes, which is why the mastoid process is the correct structure.

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