PHARYNGEAL ARCH DERIVATIVES

Question 1

maxillary process leads to maxilla and zygomatic bone

mandibular process leads to mocked cartilage than mandible to malleus, incus, sphenomandibular ligament

muscles of mastication

CN V

Pierre Robin Sequence
Treacher Collin Syndrome

Answer 1

1st pharyngeal arch

Question 2

reichert cartilage developing stapes, styloid process, lesser horn of hyoid, stylohyoid ligament

muscles of facial expression

CN VII

Answer 2

2nd pharyngeal arch

Question 3

greater horn of hyoid

stylopharnygeus

CN IX

Answer 3

3rd pharyngeal arch

Question 4

arytenoids, cricoid, corniculate, cuneiform, thyroid

CN X, CN X

Answer 4

4th pharyngeal

4th: CN X, superior laryngeal branch for swallowing
6th: CN X, recurrent/inferior laryngeal branch for speaking