Pharyngeal arches — Flashcards

Flashcard 11: CN 10 - superior laryngel branch

Answer: 4th arch

Flashcard 12: CN 10 - recurrent laryngeal branch

Answer: 6th arch

Flashcard 13: anterior 2/3 of tongue

Answer: 1st arch

Flashcard 14: Embryological origin of the posterior 1/3 of the tongue (mucosa)

Answer: 3rd arch (mainly) and 4th arch

Extra: The mucosa of the posterior 1/3 of the tongue is derived from the hypobranchial eminence. The 3rd arch component (large) overgrows the 2nd arch (which disappears from the surface) and the 4th arch (small) contributes to the most posterior part near the epiglottis.

Flashcard 15: cricoid cartilage

Answer: 4th-6th arches

Flashcard 16: From which pharyngeal arches is the thyroid cartilage derived?

Answer: 4th and 6th arches (Laryngeal cartilages)

Flashcard 17: stylopharyngeus

Answer: 3rd arch

Flashcard 18: greater horn of hyoid

Answer: 3rd arch

Flashcard 19: styloid process

Answer: 2nd arch

Flashcard 20: incus

Answer: 1st arch