Cervical Muscles & Muscles Of Facial Expression

Front 1

muscles ________ under neural control causing soft tissue and bony structures of the body to move

Back 1

shorten

Front 2

Muscles have two ends an ______ & _________

Back 2

- origin
- insertion

Front 3

the end of the muscle attached to the least movable structure

Back 3

origin

Front 4

the end of the muscle attached to the more movable structure

Back 4

insertion

Front 5

the largest and most superficial cervical muscle and serves as a primary muscular landmark of the neck during an extraoral examination

Back 5

Sternocleidomastoid (SCM) muscle

Front 6

The SCM divides the neck into two regions:

Back 6

- the anterior cervical triangle
- posterior cervical triangle

Front 7

The SCM muscle originates from the _____________ and the inserts on the ___________

Back 7

- medial portion of the clavicle
- mastoid process of the temporal bone

Front 8

The SCM (Sternocleidomastoid) muscle is Innervated by which cranial nerve

Back 8

CN XI (accessory nerve)

Front 9

The action of the SCM muscle if one muscle contracts is ____________ and if two muscles contract ____________

Back 9

- head and neck bend to same side and the face and front of the neck rotate to the opposite side
- head and neck will flex at neck and extend at junction between neck and skull

Front 10

The superficial cervical muscle that is a broad, flat triangular muscle that covers the lateral and posterior neck surfaces

Back 10

Trapezius muscle

Front 11

the Trapezius muscle originates at the _____________ and inserts on the ___________

Back 11

- external surface of occipital bone and posterior midline of cervical and thoracic regions
- lateral third of clavicle and portions of scapula

Front 12

The Trapezius muscle is innervated by which cranial nerve

Back 12

CN XI (accessory nerve)

Front 13

The action of the Trapezius muscle is

Back 13

lift calvicle and scapula (shoulder shrugging)

Front 14

__________ are paired muscles in the superficial fascia of the facial tissues

Back 14

muscles of Facial Expressions

Front 15

All muscles of facial expressions originate from _________ and insert on the _________

Back 15

- surface of skull bone
- dermis of skin tissue

Front 16

There are ____ facial expression muscles to smile and _____ facial expressions to frown

Back 16

- 17
- 43

Front 17

True or False:
Muscles of Facial Expressions are what cause wrinkling.

Back 17

True

Front 18

_______ is loss of voluntary muscle action

Back 18

Paralysis

Front 19

Paralysis is caused by loss of innervations to muscles of facial expression due to:

Back 19

- Cerebrovascular accident (stroke)
- Bell's palsy
- Parotid salivary gland cancer
- parotid gland damage due to trauma

Front 20

True or False:
Paralysis always consist of permanent damage to facial nerve

Back 20

False - Damage could be permanent or temporary

Front 21

The muscles of facial expression are divided up into three regions:

Back 21

- Scalp
- Eye
- mouth

Front 22

the scalp region of muscles of facial expression consist of the following muscle(s)

Back 22

- Epicranial Muscle

Front 23

The epicranial muscle originates at the _________ and inserts on the _________

Back 23

- origin - Front belly- epicranial aponeurosis; Occipital belly - occipital and temporal bones
- insertion - front belly - eyebrow and root of nose; occipital belly - epicranial aponeurosis

Front 24

The epicranial muscle is innervated by which cranial nerve

Back 24

CN VII (facial nerve)

Front 25

the action of the epicranial muscle is

Back 25

suprise

Front 26

The eye region of the muscles of facial expression consist of the following muscle(s)

Back 26

- Orbicularis Oculi Muscle
- Corrugator Supercilii

Front 27

This muscle of facial expression and its tendon are one of the layers of the scalp

Back 27

epicranial muscle

Front 28

This muscle of facial expression encirlces the eye and has important functions in protecting, moistening the eye as well as in facial expression

Back 28

orbicularis oculi muscle

Front 29

the orbicularis oculi muscle originates at the _________ and inserts on the __________

Back 29

- orbital rim, frontal bone, maxillary bone
- lateral region of eye (some encircle eye)

Front 30

The Orbicularis Oculi Muscle is innervated by

Back 30

CN VII (facial nerve)

Front 31

the action of the orbicularis oculi muscle is

Back 31

closing eyelid

Front 32

the _______ is a muscle of facial expression in the eye region, deep to the superior portion of the orbicularis oculi muscle

Back 32

corrugator supercilii muscle

Front 33

the corrugator supercilii muscle orginates at the __________ and inserts on the ___________

Back 33

- frontal bone
- eyebrow

Front 34

The corrugator supercilii muscle is innervated by

Back 34

CN VII (facial nerve)

Front 35

The action of the corrugator supercilii muscle is

Back 35

frowning

Front 36

The mouth region of the muscles of facial expression consist of the following muscle(s)

Back 36

- orbicularis oris
- buccinators
- risorius
- levator labii superioris
- levator labii superior alaeque nasi
-zygomaticus major
- zygomaticus minor
- levator anguli oris
- supressor anguli oris
- depressor labii inferioris
- mentalis
- platysma

Front 37

the __________ muscle is an important muscle of facial expression in the mouth region that acts to shape and control the size of mouth opening and is important for creating the lip positions and movements during speech

Back 37

orbicularis oris muscle

Front 38

the orbicularis muscle orginates at the ________ and inserts on the _________

Back 38

- the mouth (encircles mouth)
- angle of mouth

Front 39

The orbiuclaris muscle is innervated by

Back 39

CN VII ( facial nerve)

Front 40

The action of the orbicularis oris muscle is

Back 40

closing and pursing lips (pouting, grimacing)

Front 41

The ________ is a muscle of facial expression that forms the anterior portion of the cheek or the lateral wall of the oral cavity

Back 41

Buccinator muscle

Front 42

the buccinator muscle originates at the ________ and inserts on the __________

Back 42

- maxilla, mandible, pterygomandibular raphe (pterygomandibular fold)
- angle of mouth

Front 43

the buccinator muscle is innervated by

Back 43

CN VII (facial nerve)

Front 44

The buccinator muscle action is

Back 44

chewing

Front 45

The risorius muscle is a thin muscle of facial expression in the mouth region that originates at the _______ and inserts on the _________

Back 45

- fascia superficial to masseter muscle
- angle of mouth

Front 46

the risorius muscle is innervated by

Back 46

CN VII (facial nerve)

Front 47

The action of the risorius muscle is

Back 47

stretching lips

Front 48

The levator labii superioris muscle is a broad, flat muscle of facial expression in the mouth region that originates at the _______ and inserts on the ___________

Back 48

- maxilla
- upper lip

Front 49

the levator labii superioris muscle is innervated by

Back 49

CN VII (facial nerve)

Front 50

the action of the levator labii superioris muscle is

Back 50

raising upper lip

Front 51

the levator labii alaque nasi muscle is also a muscle in the mouth region that orginates at the _________ and inserts on the __________

Back 51

- maxilla
- ala of nose

Front 52

the levator labii alaque nasi muscle is innervated by

Back 52

CN VII (facial nerve)

Front 53

the action of the levator labii alaque nasi muscle is

Back 53

raising upper lip and dialating nostrils

Front 54

the zygomaticus major muscle originates at the _______ and inserts on the _________

Back 54

- zygomatic bone
- angle of mouth

Front 55

the zygomaticus major muscle is innervated by the

Back 55

CN VII (facial nerve)

Front 56

the action of the zygomaticus major muscle is

Back 56

smiling

Front 57

the zygomaticus minor muscle is a small muscle of facial expressions in the mouth region medial to the zygomaticus major that originates at the ________ and inserts on the __________

Back 57

- zygomatic bone
- upper lip

Front 58

the zygomaticus minor muscle is innervated by

Back 58

CN VII (facial nerve)

Front 59

the action of the zygomaticus minor muscle is

Back 59

raising upper lip, assisting in smiling

Front 60

deep to both the zygomaticus major and zygomaticus minor muscles is the levator anguli oris muscle that originates on the _________ and inserts in the

Back 60

- maxilla
- angle of mouth

Front 61

the levator anguli oris muscle is innervated by

Back 61

CN VII ( facial nerve)

Front 62

the action of the levator anguli muscle is

Back 62

smiling

Front 63

the depressor anguli oris muscle is a triangular muscle of facial expression in the lower region of the mouth that originates on the _________ and inserts at the

Back 63

- mandible
- angle of mouth

Front 64

the depressor anguli oris muscle is innervated by the

Back 64

CN VII (facial nerve)

Front 65

the action of the depressor anguli oris muscle is

Back 65

frowning

Front 66

deep to the depressor anguli oris muscle is the depressor labii inferioris muscle that originates at the ________ and inserts at the _________

Back 66

- mandible
- lower lip

Front 67

the depressor labii inferioris muscle in innervated by the

Back 67

CN VII (facial nerve)

Front 68

the action of the depressor labii inferioris muscle is

Back 68

lowering lower lip

Front 69

the mentalis muscle is a short thick muscle of facial expression superior and medial to the mental nerve in the mouth region that originate at the ________ and inserts at the ___________

Back 69

- mandible
- chin

Front 70

the mentalis muscle is innervated by

Back 70

CN VII (facial nerve)

Front 71

the action of the mentalis muscle is

Back 71

raising chin, protruding chin

Front 72

the _________ is the muscle of facial expression that runs from the neck all the way to the mouth, covering the anterior cervical triangle

Back 72

- Platysma Muscle

Front 73

the Platysma muscle originates at the ________ and inserts at the ________

Back 73

- clavicle, shoulder
- mandible and muscles of mouth

Front 74

the Platysma muscle is innervated by

Back 74

CN VII (facial nerve)

Front 75

the action of the platysma muscle is

Back 75

raising neck skin, grimacing