Which middle ear bone is derived from the first pharyngeal arch?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Study for the Pharyngeal Apparatus Test. Dive into multiple choice questions with detailed explanations and hints. Prepare effectively for your exam!

Multiple Choice

Which middle ear bone is derived from the first pharyngeal arch?

Explanation:
The first pharyngeal arch contributes to the formation of the malleus and incus, the two ossicles that connect the eardrum to the inner ear. The malleus specifically develops from Meckel’s cartilage, which is a derivative of the first arch. In contrast, the stapes comes from Reichert’s cartilage of the second pharyngeal arch. So the bone derived from the first arch is the malleus. (The incus also comes from the first arch, while the “auditory ossicle not specified” option isn’t a real bone.)

The first pharyngeal arch contributes to the formation of the malleus and incus, the two ossicles that connect the eardrum to the inner ear. The malleus specifically develops from Meckel’s cartilage, which is a derivative of the first arch. In contrast, the stapes comes from Reichert’s cartilage of the second pharyngeal arch. So the bone derived from the first arch is the malleus. (The incus also comes from the first arch, while the “auditory ossicle not specified” option isn’t a real bone.)

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy