Head and Neck Development

Question 0

2nd pharyngeal arch cartilage/bone derivatives

Answer 0

stapes
styloid process
upper body and the lower horn of hyoid bone

Question 1

1st pharyngeal arch cartilage/bone derivatives

Answer 1

mandible
malleus 
incus
temporal bone
maxillary bone
zygomatic bone

Question 2

3rd pharyngeal arch cartilage/bone derivatives

Answer 2

lower body and greater horn of hyoid bone

Question 3

4th pharyngeal arch cartilage/bone derivatives

Answer 3

upper part of thyroid cartilage

laryngeal cartilage

Question 4

6th pharyngeal arch cartilage/bone derivatives

Answer 4

lower portion of thyroid cartilage
cricothyroid cartilage
(laryngeal cartilage)

Question 5

Nerve of the 1st aortic arch

Answer 5

CN V = Trigeminal N

Question 6

Nerve of the 2nd aortic arch

Answer 6

CN VII = Facial N

Question 7

Nerve of the 3rd aortic arch

Answer 7

CN IX = Glossopharyngeal N.

Question 8

Nerve of the 4th aortic arch

Answer 8

CN X = Vagus N.

Question 9

Nerve of the 6th aortic arch

Answer 9

CN X = Vagus N

Question 10

Derivatives of 1st pharyngeal pouch

Answer 10

auditory tube

inner lining of tympanic membrane

Question 11

Derivatives of 2nd pharyngeal pouch

Answer 11

palatine tonsil

Question 12

Derivatives of 3rd pharyngeal pouch

Answer 12

inferior parathyroid gland

Question 13

Derivatives of 4th pharyngeal pouch

Answer 13

superior parathyroid gland

ultimobrachial body

Question 14

left 6th aortic arch

Answer 14

retained and the Recurrent Laryngeal N hooks under the aortic arch at the ductus arteriosus

Question 15

right 6th aortic arch

Answer 15

degenerates and the Right Recurrent Laryngeal N hooks under the derivative of the 4th aortic arch (subclavian A)