Actions

Question 1

Platysma (2)

Answer 1

Tense the skin of the neck
Grimace

Question 2

Trapezius (5)

Answer 2

Elevate, retract, and rotate scapula superiorly
Shoulders fixed: extend head (bilateral), flex head (unilateral)

Question 3

Sternocleidomastoid (2)

Answer 3

Unilateral: ipsilateral lateral flexion of neck and contralateral rotation
Bilateral: flex and extends neck at atlanto-occipital joint

Question 4

Scalenes (2)

Answer 4

Elevate ribs 1 and 2
Assists in respiration

Question 5

Longus colli (2)

Answer 5

Bilateral: flex and rotate head and neck
Unilateral: lateral flexion of neck

Question 6

Longus capitis (2)

Answer 6

Flex and rotate head and neck

Question 7

Digastric (2)

Answer 7

Elevates hyoid during swallowing
Depresses mandible

Question 8

Stylohyoid (2)

Answer 8

Elevates and retracts hyoid

Question 9

Mylohyoid (1)

Answer 9

Elevates hyoid, floor of mouth, and tongue during swallowing and speaking

Question 10

Geniohyoid (3)

Answer 10

Pulls hyoid anterosuperiorly
Shortens floor of mouth
Widens pharynx

Question 11

Sternohyoid (1)

Answer 11

Depresses hyoid after elevation during swallowing

Question 12

Omohyoid (3)

Answer 12

Depresses, retracts, and steadies hyoid

Question 13

Thyrohyoid (2)

Answer 13

Depresses hyoid
Elevates larynx

Question 14

Sternothyroid (2)

Answer 14

Depresses hyoid and larynx

Question 15

Cricothyroid (1)

Answer 15

Stretch and tense vocal folds

Question 16

Thyroepiglottis (1)

Answer 16

Widens laryngeal inlet by inferiorly displacing epiglottis

Question 17

Thyroarytenoid (2)

Answer 17

Relax vocal ligament
Adducts vocal folds

Question 18

Lateral cricoarytenoid (1)

Answer 18

Adducts vocal folds

Question 19

Posterior cricoarytenoid (1)

Answer 19

Abducts vocal folds

Question 20

Transverse and oblique arytenoid (2)

Answer 20

Adducts arytenoid cartilages
Adducts vocal folds

Question 21

Vocalis (1)

Answer 21

Tightens vocal folds

Question 22

Orbicularis oris (3)

Answer 22

Closes mouth
Protrusion of lips
Pursing of lips

Question 23

Depressor anguli oris (2)

Answer 23

Depresses the corners of the mouth
Antagonizes the levator anguli oris muscle

Question 24

Levator anguli oris (1)

Answer 24

Elevates the corners of the mouth

Question 25

Zygomaticus major (1)

Answer 25

Moves the angle of the mouth superiorly and laterally

Question 26

Zygomaticus minor (1)

Answer 26

Helps elevate the upper lip

Question 27

Levator labii superioris (1)

Answer 27

Elevates the upper lip

Question 28

Levator labii superioris alaque nasi (2)

Answer 28

Elevates upper lip Dilates the nostril

Question 29

Risorius (1)

Answer 29

Moves the corners of mouth laterally

Question 30

Depressor labii inferioris (1)

Answer 30

Depresses lower lip

Question 31

Mentalis (1)

Answer 31

Protrudes lower lip

Question 32

Buccinator (2)

Answer 32

Aids in mastication keeping the bolus between cheek and teeth Helps forcibly expel air or create a sucking action

Question 33

Posterior auricular (1)

Answer 33

Draws auricle anteriorly

Question 34

Anterior auricular (1)

Answer 34

Draws auricle superiorly

Question 35

Superior auricular (1)

Answer 35

Draws auricle posteriorly

Question 36

Compressor naris (1)

Answer 36

Compresses the nostril

Question 37

Dilator naris (1)

Answer 37

Dilates the nostril

Question 38

Depressor septi (1)

Answer 38

Draws nasal septum anteriorly to constrict nostril

Question 39

Procerus (1)

Answer 39

Brings skin together producing transverse wrinkles on the bridge of the nose

Question 40

Frontalis (3)

Answer 40

Elevates eyebrows Wrinkles forehead Wrinkles the back of the head

Question 41

Occipitalis (3)

Answer 41

Elevates eyebrows Wrinkles forehead Wrinkles the back of the head

Question 42

Orbital (1)

Answer 42

Forcible closure of the eye

Question 43

Lacrimal (1)

Answer 43

Aids the flow of tears

Question 44

Palpebral (1)

Answer 44

Closure of eyelids gently (blinking)

Question 45

Corrugator supercilii (1)

Answer 45

Draws the eyebrows medially and inferiorly

Question 46

Masseter (1)

Answer 46

Elevates mandible

Question 47

Temporalis (2)

Answer 47

Elevates mandible Retrudes mandible

Question 48

Medial pterygoid (3)

Answer 48

Elevate mandible Protrude mandible Lateral excursion of the mandible

Question 49

Lateral pterygoid (2)

Answer 49

Depress and protrude mandible Lateral excursion of the mandible

Question 50

Superior oblique (3)

Answer 50

Incyclotorsion Depression Abduction

Question 51

Inferior oblique (3)

Answer 51

Excyclotorsion Elevation Abduction

Question 52

Superior rectus (3)

Answer 52

Elevation Incyclotorsion Adduction

Question 53

Inferior rectus (3)

Answer 53

Depression Excyclotorsion Adduction

Question 54

Lateral rectus (1)

Answer 54

Abduction of eye

Question 55

Medial rectus (1)

Answer 55

Adduction of eye

Question 56

Levator palperae superioris (1)

Answer 56

Elevates superior eyelid

Question 57

Tensor veli palatini (2)

Answer 57

Elevates and tenses soft palate Assists in opening auditory tube when swallowing

Question 58

Levator veli palatini (1)

Answer 58

Works in conjunction with tensor veli palatini muscle

Question 59

Salpingopharyngeus (1)

Answer 59

Elevate pharynx and larynx when swallowing and speaking

Question 60

Superior pharyngeal constrictor (1)

Answer 60

Constricts the walls of the pharynx when swallowing

Question 61

Stylopharyngeus (2)

Answer 61

Elevates larynx and pharynx Dilates pharynx

Question 62

Palatopharyngeus (1)

Answer 62

Elevates pharynx

Question 63

Styloglossus (2)

Answer 63

Lift lateral edges of tongue Retracts tongue

Question 64

Palatoglossus (3)

Answer 64

Constricts the isthmus Elevates the tongue Depresses soft palate

Question 65

Genioglossus (1)

Answer 65

Protrudes the tongue

Question 66

Hyoglossus (2)

Answer 66

Retrudes the tongue Depresses lateral margins of tongue