m. of face, mastication, tongue and neck (M,A,I)

Question 1

buccinator

Answer 1

compresses cheek; pulls corner of mouth laterally

facial

Question 2

risorius

Answer 2

pulls the angle of the mouth backwards laterally

facial

Question 3

corrugator

Answer 3

Draws the eyebrows
together as in frowning
facial

Question 4

procerus

Answer 4

Wrinkles the skin between the eyebrows

facial

Question 5

depressor anguli oris

Answer 5

Pulls the angle of the mouth downward and laterally

facial

Question 6

levator anguli oris

Answer 6

Pulls the angle of the mouth upward

facial

Question 7

depressor labii inferioris

Answer 7

pulls the lower lip downward

facial

Question 8

levator labii superioris (& LLS aleaque nasi)

Answer 8

Raises the upper lip; dilates the nares (nostrils)

facial

Question 9

frontalis

Answer 9

raises the eyebrows, wrinkles the skin of the forehead horizontally
facial

Question 10

occipitalis

Answer 10

draws the scalp posterior

Question 11

mentalis

Answer 11

raises and protrudes the lower lip, wrinkles the chin

facial

Question 12

orbicularis oculi (orbital, palpebral)

Answer 12

closes the eyelid; tightens the skin of the forehead

facial

Question 13

orbicularis oris

Answer 13

closes and protrudes the lip

facial

Question 14

platysma

Answer 14

depresses the mandible; draws the angle of the mouth downwards; tightens and wrinkles the skin of the neck
facial

Question 15

zygomaticus major and minor

Answer 15

both raise the angle of the mouth

facial

Question 16

temporalis

Answer 16

raises the mandible, closing the jaw, retracts the mandible

trigeminal

Question 17

masseter

Answer 17

raises the mandible, closing the jaw

trigeminal

Question 18

medial pterygoid

Answer 18

closes the jaw; together with the lateral pterygoid, it aids in the sideways movement of the jaw (grinding)
trigeminal

Question 19

lateral pterygoid

Answer 19

opens and protrudes the mandible from side to side

trigeminal

Question 20

genioglossus

Answer 20

protracts, retracts and depresses the tongue

hypoglossal

Question 21

hyoglossus

Answer 21

depresses the tongue, draws its side downwards

hypoglossal

Question 22

styloglossus

Answer 22

retracts and elevates the tongue

hypoglossal

Question 23

sternocleidomastoid (sternal and clavicular head)

Answer 23

both heads of this muscle act together to flex the cervical column; acting singularly, each rotates the head to the opposite side
accessory

Question 24

digastric (ant and post belly)

Answer 24

raises the hyoid and assists in opening the jaw (depresses mandible)
trigeminal (ant belly)
facial (post belly)

Question 25

stylohyoid

Answer 25

raises and retracts the hyoid

facial

Question 26

mylohyoid

Answer 26

raises the hyoid and the floor of the mouth

trigeminal (mandibular)

Question 27

geniohyoid

Answer 27

pulls the hyoid anteriorly and superiorly

hypoglossal C1 spinal n.

Question 28

sternohyoid

Answer 28

depresses larynx and hyoid b

C1-C3 spinal n.

Question 29

sternothyroid

Answer 29

pulls thyroid cartilage

C1-C3 spinal n.

Question 30

thyrohyoid

Answer 30

depresses hyoid b and elevates thyroid cartilage

hypoglossal, C1 spinal n.

Question 31

omohyoid (sup/inf belly)

Answer 31

depresses and retracts hyoid bone

C1-C3 spinal n.