Derivative of Branchial (pharyngeal) Arches

Question 1

In arch 1 what N is involved?

Answer 1

CN V

Question 2

What muscles are inovled in arch 1?

Answer 2

Muscles of mastication
Tensor veli palatine
Tensor tympani
Anterior belly of digastric

Question 3

What bones are involved in arch 1?

Answer 3

Mandible
Malleus
Incus

Question 4

What cartilage is involved in arch 1?

Answer 4

Meckel’s Cartilage

Question 5

What CN is involved in arch 2?

Answer 5

CN VII

Question 6

What muscles are involved in arch 2?

Answer 6

Smiling Muscles
Sylohyoid
Stapedius
Posterior Belly of Digastric

Question 7

What bones are involved in arch 2?

Answer 7

Stapes
Styloid process
Smaller (lessor) horn of hyoid bone
Superior part of hyoid bone

Question 8

What cartilage is involved in arch 2?

Answer 8

Reichert’s Cartilage

Question 9

What N is involved in arch 3?

Answer 9

CN IX

Question 10

What muscle is involved in arch 3?

Answer 10

Stylopharyngeus

Question 11

What bones are involved in arch 3?

Answer 11

Greater horn of hyoid bone

Inferior part of the body of hyoid bone

Question 12

What N is involved in arch 4?

Answer 12

CN X

Question 13

What muscles are involved in arch 4?

Answer 13

Muscles of pharynx EXCEPT stylopharyngeus

Question 14

What cartilage is involved in arch 4?

Answer 14

Thyroid

Cricoid

Question 15

What CN is involved in arch 6?

Answer 15

CN X

Question 16

What muscles are involved in arch 6?

Answer 16

Muscles of larynx

Question 17

What cartilages are involved in arch 6?

Answer 17

Arytenoid
Corniculate
Cuneiform