Embryology - pharyngeal arches

Question 1

1st arch

Answer 1

muscles of mastication and mylohyoid muscle

trigeminal nerve

Question 2

2nd arch

Answer 2

muscles of facial expression

facial nerve

Question 3

3rd arch

Answer 3

hyoid bone. stylopharyngeus muscle

glossopharyngeal nerve

Question 4

4th arch

Answer 4

pharyngeal and cricothyroid muscles; thyroid and cricoid cartilages
superior laryngeal branch of vagus nerve

Question 5

6th arch

Answer 5

intrinsic muscles of larynx and arytenoid cartilages

recurrent laryngeal branch of vagus nerve