Because of Respiratory Problems, an Infant Is Transported to the Neonatal

Because of respiratory problems, an infant is transported to the neonatal intensive care unit shortly after birth. The baby was born on time, and there were no difficulties during pregnancy or delivery. After the patient has been stabilized, a thorough physical examination is undertaken. The neonate's jaw is undeveloped, and his zygomatic bones are hypoplastic. A gene mutation causes aberrant development of the first and second pharyngeal arches, according to genetic tests. Which of the following structures in this patient is most likely abnormal?

A) Cricoid cartilage
B) Glossopharyngeal nerve
C) Greater horn of hyoid
D) Stapes
E) Thyroid cartilage
F) Vagus nerve

Correct Answer:

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