Muscles of the Head and Neck

Question 1

Origin of Frontalis

Answer 1

Galea aponeurotica

Question 2

Insertion of Frontalis

Answer 2

Skin above supraorbital margin

Question 3

Action of Frontalis

Answer 3

Draws scalp anteriorly; raises eyebrows; and wrinkles forehead

Question 4

Origin of Occipitalis

Answer 4

Mastoid and occipital

Question 5

Insertion of Occipitalis

Answer 5

Galea aponeurotica

Question 6

Action of Occipitalis

Answer 6

Draws scalp posteriorly

Question 7

Origin of Orbicularis oculi

Answer 7

Orbit

Question 8

Insertion of Orbicularis oculi

Answer 8

Circular path of orbit

Question 9

Action of Orbicularis oculi

Answer 9

Closes eye

Question 10

Origin of Zygomaticus major

Answer 10

Zygomatic bone

Question 11

Insertion of Zygomaticus major

Answer 11

Angle of mouth

Question 12

Action of Zygomaticus major

Answer 12

Raises angle of mouth, as in smiling

Question 13

Origin of Zygomaticus minor

Answer 13

Zygomatic bone

Question 14

Insertion of Zygomaticus minor

Answer 14

Upper lip

Question 15

Action of Zygomaticus minor

Answer 15

Elevates upper lip and exposes maxillary teeth

Question 16

Origin of Buccinator

Answer 16

Maxilla and mandible

Question 17

Insertion of Buccinator

Answer 17

Angle of mouth

Question 18

Action of Buccinator

Answer 18

Compresses cheeks as in blowing or whistling

Question 19

Origin of Orbicularis oris

Answer 19

Maxilla and mandible

Question 20

Insertion of Orbicularis oris

Answer 20

Angle of mouth

Question 21

Action of Orbicularis oris

Answer 21

Closes mouth and puckers the lips

Question 22

Origin of Levator labii superioris

Answer 22

Maxilla

Question 23

Insertion of Levator labii superioris

Answer 23

Angle of mouth

Question 24

Action of Levator labii superioris

Answer 24

Elevates upper lip

Question 25

Origin of Depressor anguli oris

Answer 25

Mandible

Question 26

Insertion of Depressor anguli oris

Answer 26

Angle of mouth

Question 27

Action of Depressor anguli oris

Answer 27

Depresses angle of mouth

Question 28

Origin of Masseter

Answer 28

Zygomatic arch

Question 29

Insertion of Masseter

Answer 29

Mandible

Question 30

Action of Masseter

Answer 30

Raises jaw

Question 31

Origin of Temporalis

Answer 31

Temporal bone

Question 32

Insertion of Temporalis

Answer 32

Mandible

Question 33

Action of Temporalis

Answer 33

Elevates mandible and closes jaw

Question 34

Origin of Medial Pterygoid

Answer 34

Inferior aspect of skull

Question 35

Insertion of Medial Pterygoid

Answer 35

Mandible

Question 36

Action of Medial Pterygoid

Answer 36

Raises jaw

Question 37

Origin of Lateral Pterygoid

Answer 37

Inferior aspect of skull

Question 38

Insertions of Lateral Pterygoid

Answer 38

Mandible

Question 39

Action of Lateral Ptertgoid

Answer 39

Lowers jaw

Question 40

Origin of Sternocleidomastoid

Answer 40

Sternum and clavicle

Question 41

Insertion of Sternocleidomastoid

Answer 41

Mastoid process of temporal

Question 42

Action of Sternocleidomastoid

Answer 42

Both muscles: flex head | One muscle: rotates head toward opposite shoulder

Question 43

Origin of Trapezius

Answer 43

Skull and vertebral column

Question 44

Insertion of Trapezius

Answer 44

Scapula

Question 45

Action of Trapezius

Answer 45

Extends head and rotates scapula

Question 46

Muscles of Epicranius

Answer 46

Frontalis and Occipitalis

Question 47

Action of Levator palpebrae superioris

Answer 47

Opens eye

Question 48

Origin of Hypoglossus

Answer 48

Hyoid

Question 49

Insertion of Hypoglossus

Answer 49

Tongue

Question 50

Action of Risorius

Answer 50

Elongates lips laterally (sardonic smile)

Question 51

Origin of Styrohyoid

Answer 51

Thyroid cartilage

Question 52

Insertion of Styrohyoid

Answer 52

Hyoid bone

Question 53

Origin of Sternohyoid

Answer 53

Sternum

Question 54

Insertion of Sternohyoid

Answer 54

Hyoid bone

Question 55

Origin of Sternothyroid

Answer 55

Sternum

Question 56

Insertion of Sternothyroid

Answer 56

Thyroid cartilage