Head and Neck innervation

Question 1

Zygomaticus Minor

Answer 1

Buccal branch of the Facial Nerve (CN VII)

Question 2

Zygomaticus Major

Answer 2

Buccal branch of the Facial Nerve (CN VII)

Question 3

Levator Anguli Oris

Answer 3

Buccal branch of the Facial Nerve (CN VII)

Question 4

Buccinator

Answer 4

Buccal branch of the Facial Nerve (CN VII)

Question 5

Risorius

Answer 5

Buccal branch of the Facial Nerve (CN VII)

Question 6

Orbicularis Oris

Answer 6

Buccal and Mandibular branches of the Facial Nerve (CN VII)

Question 7

Depressor Anguli Oris

Answer 7

Mandibular branch of the Facial Nerve (CN VII)

Question 8

Depressor Labii Inferioris

Answer 8

Mandibular branch of the Facial Nerve (CN VII)

Question 9

Mentalis

Answer 9

Mandibular branch of the Facial Nerve (CN VII)

Question 10

Platysma

Answer 10

Cervical branch of the Facial Nerve (CN VII)

Question 11

Temporalis

Answer 11

Mandibular nerve

Question 12

Masseter

Answer 12

Mandibular nerve

Question 13

Lateral Pterygoid

Answer 13

Mandibular nerve

Question 14

Medial Pterygoid

Answer 14

Mandibular Nerve

Question 15

Digastric

Answer 15

Anterior Belly: Mandibular nerve

Posterior Belly: Facial nerve

Question 16

Sternocleidomastoid

Answer 16

Spinal Accessory Nerve (CN XI) and C2, C3

Question 17

Anterior Scalene

Answer 17

Ventral rami of cervical spinal nerves C4-C6

Question 18

Middle Scalene

Answer 18

Ventral rami of cervical spinal nerves C3- C8

Question 19

Posterior Scalene

Answer 19

Ventral rami of cervical spinal nerves C6-C8

Question 20

Orbicularis Oculi

Answer 20

Temporal and zygomatic branches of facial nerve (VII)

Question 21

Levator Palpebrae Superioris

Answer 21

Oculomotor Nerve (CN III)