Face Muscles

Question 1

Corrugator supercillii action

Answer 1

Creates vertical lines between eyebrows

Question 2

Corrugated supercilli innervation

Answer 2

Facial nerve (CNVII)

Question 3

Occipitofrontalis action

Answer 3

Lifts eyebrows, creates horizontal lines across forehead

Question 4

Orbicularis occuli action

Answer 4

Closes eyelids

Question 5

Occipitofrontalis innervation

Answer 5

Facial nerve (CN VII)

Question 6

Orbicularis occuli innervation

Answer 6

Facial nerve (CN VII)

Question 7

Nasalis action

Answer 7

Opens the nostrils

Question 8

Nasalis innervation

Answer 8

Facial nerve (CN VII)

Question 9

Orbicularis oris action

Answer 9

Closes the lips

Question 10

Orbicularis oris innervation

Answer 10

Facial nerve (CN VII)

Question 11

Buccinator action

Answer 11

Presses cheek to molars

Question 12

Buccinator innervation

Answer 12

Facial nerve (CN VII)

Question 13

Zygomaticus major action

Answer 13

Raises corners of the mouth - smile

Question 14

Zygomaticus major innervation

Answer 14

Facial nerve (CN VII)

Question 15

Zygomaticus minor action

Answer 15

Lifts upper lip

Question 16

Zygomaticus minor innervation

Answer 16

Facial nerve (CN VII)

Question 17

Platysma action

Answer 17

Pulls lower lip down and laterally

Question 18

Platysma innervation

Answer 18

Facial nerve (CN VII)

Question 19

Temporalis origin

Answer 19

Lateral skull, temporal fossa

Question 20

Temporalis insertion

Answer 20

Coronoid process, medial (internal) surface of ramus

Question 21

Temporalis action

Answer 21

Elevate mandible

Question 22

Temporalis innervation

Answer 22

Mandibular branch of CNV

Question 23

Masseter origin

Answer 23

Zygomatic bone & arch

Question 24

Masseter insertion

Answer 24

Lateral surface ramus and angle of mandible

Question 25

Masseter action

Answer 25

Elevate mandible

Question 26

Masseter innervation

Answer 26

Mandibular branch CNV

Question 27

Medial pterygoid origin

Answer 27

Medial surface of lateral pterygoid plate

Question 28

Medial pterygoid insertion

Answer 28

Medial surface of ramus and angle

Question 29

Medial pterygoid action

Answer 29

Elevate mandible

Question 30

Medial pterygoid innervation

Answer 30

Mandibular branch of CNV

Question 31

Lateral pterygoid superior origin

Answer 31

Greater wing of sphenoid

Question 32

Lateral pterygoid superior insertion

Answer 32

TMJ capsule & disc

Question 33

Lateral pterygoid superior action

Answer 33

Retrusion (stabilizes disk)

Question 34

Lateral pterygoid superior innervation

Answer 34

Mandibular branch of CNV

Question 35

Lateral pterygoid inferior origin

Answer 35

Lateral surface of lateral pterygoid plate

Question 36

Lateral pterygoid inferior insertion

Answer 36

Mandibular neck, just inferior to condyle

Question 37

Lateral pterygoid inferior action

Answer 37

Bilateral - protrusion

Question 38

Lateral pterygoid inferior innervation

Answer 38

Mandibular branch CNV

Question 39

Digastric anterior origin

Answer 39

Digastric fossa of mandible

Question 40

Digastric anterior insertion

Answer 40

Hyoid bone

Question 41

Digastric anterior action

Answer 41

Steadies hyoid bone

Question 42

Digastric anterior innervation

Answer 42

Mandibular branch of CNV

Question 43

Digastric posterior origin

Answer 43

Mastoid notch of temporal bone

Question 44

Digastric posterior insertion

Answer 44

Hyoid bone

Question 45

Digastric posterior action

Answer 45

Steadies hyoid bone

Question 46

Digastric posterior innervation

Answer 46

Facial nerve (through mastoid foramen)

Question 47

Suprahyoid origin

Answer 47

Medial surface of mandible, inferior mental spines

Question 48

Suprahyoid insertion

Answer 48

Superior surface of hyoid

Question 49

Suprahyoid action

Answer 49

Hyoid fixed - assist with Mandibular depression

Question 50

Suprahyoid innervation

Answer 50

Mandibular branch of CNV CNI

Question 51

Infrahyoid origin

Answer 51

Sternum, superior border scapula, thyroid cartilage

Question 52

Infrahyoid insertion

Answer 52

Inferior surface of hyoid and thyroid cartilage

Question 53

Infrahyoid action

Answer 53

Depression / fixation of hyoid

Question 54

Infrahyoid innervation

Answer 54

C1-3, CNI