Embryology Of The Head And Neck

Question 1

Arch 1 is associated with which nerve

Answer 1

Trigeminal CN V

Question 2

Arch 2 is associated with which nerve

Answer 2

Facial nerve CN VII

Question 3

Arch 3 is associated with which nerve

Answer 3

Glossopharyngeal CN IX

Question 4

Arch 4 &6 is associated with which nerve

Answer 4

Vagus CN X

Question 5

Cartilage of the second arch becomes:

Answer 5

Part of the body and lesser horn of hyoid, styloid process, stylohyoid ligament, stapes

Question 6

Muscles of the second arch:

Answer 6

Styohyoid & posterior digastric, stapedius, muscles of facial expression (migrate into arch 1 territory)

Question 7

Part of the body and lesserhorn of hyoid comes from which arch

Answer 7

2nd pharyngeal arch

Question 8

Styloid proceeds comes from which arch

Answer 8

2nd pharyngeal arch

Question 9

Stylohyoid ligament comes from which arch?

Answer 9

2nd pharyngeal arch

Question 10

The stapes comes from which arch

Answer 10

2nd pharyngeal arch

Question 11

Swellings from the pharynx that contribute to the development of the tongue

Answer 11

Lateral lingual, tuberculum impar, copula, epiglottal swelling

Question 12

Lateral lingual swellings form from which arch

Answer 12

Arch 1

Question 13

Tuberculum impar comes from which arch

Answer 13

Arch 1

Question 14

Copula comes from which arch

Answer 14

Arches 2,3,4

Question 15

Epiglottal swelling comes from which arch

Answer 15

4

Question 16

All of the swellings of the tongue form on the single midline except for:

Answer 16

Lateral lingual swellings, paired

Question 17

If something from a pharyngeal arch migrates during development, what happens to the nerve?

Answer 17

Creates a branch to that place

Question 18

Which nerve comes out of the stylomastoid foramen and spreads across the face

Answer 18

Facial nerve