Muscles Of The Face

Front 1

Occipitofrontalis Muscle
Nerve
Action

Back 1

Cranial Nerve VII (Facial)
Protracts and Retracts Scalp, Wrinkles Skin.

Front 2

Obicularis Occuli
Nerve
Action

Back 2

Cranial Nerve VII (Facial)
Closes the Eyelid

Front 3

Buccinator
Nerve
Action

Back 3

Cranial Nerve VII (Facial)
Compresses cheek and brings lips against cheek.

Front 4

Platysimus
Nerve
Action

Back 4

Cranial Nerve VII (Facial)
Depresses the Mandible

Front 5

Obicularis Oris
Nerve
Action

Back 5

Cranial Nerve VII (Facial)
Purses the Lips

Front 6

What muscles separate the lips (5)?

Back 6

2 DZs left randomly
Depressor Labii Inferioris
Depressor Anguli Oris
Zygomaticus Major/Minor
Levator Labii Superiorus
Risorius (On top of Buccinator)

Front 7

Depressor Labii Inferioris
Nerve
Action

Back 7

CN VII (Facial)
Separates the Lips

Front 8

Depressor Anguli Oris
Nerve
Action

Back 8

CN VII (Facial)
Separates the Lips

Front 9

Zygomaticus Major
Nerve
Action

Back 9

CN VII (Facial)
Separates the Lips

Front 10

Levator Labii Superiorus
Nerve
Action

Back 10

CN VII (Facial)
Separates the Lips

Front 11

Risorius (On top of Buccinator)
Nerve
Action

Back 11

CN VII (Facial)
Separates the Lips

Front 12

Mylohyoid
Nerve (give branching)
Action

Back 12

Mylohyoid Nerve (Branch off the inferior alveolar nerve, which is a branch off of V3 (Maxillary)
Forms the floor of the mouth, elevates hyoid.

Front 13

Anterior Belly of Digastric
Artery
Nerve (Give branching)
Action

Back 13

Submental Branch of Facial a.
Mylohyoid Nerve (Branch off the inferior alveolar nerve, which is a branch off of V3 (Maxillary)
Elevates Hyoid Bone and Mandible

Front 14

Posterior Belly of Digastric
Nerve (Give Branching)

Back 14

Branches of facial nerve.

Front 15

Give the muscles of mastication (4)

Back 15

Medial and Lateral Pterygoid muscles, Masseter, and Temporalis Muscle

Front 16

Temporalis Muscle
Origin
Insertion
Nerve
Action

Back 16

Temporal Fossa
Coronoid Process of Mandible and Anterior Ramus of Mandible
Mandibular division of CN V3 (Trigemenal nerve)
Closes the jaw, Elevation, Retraction

Front 17

Masseter Muscle
Origin
Insertion
Nerve
Action

Back 17

Zygomatic Arch
Angle of Mandible
Mandibular division of CN V3 (Trigeminal Nerve)
Closes the Jaw

Front 18

Lateral Pterygoid Muscle
Origin
Insertion
Nerve
Action

Back 18

Lateral Pterygoid Plate
Articular Disc of TMJ
Mandibular division of CN V3 (Trigeminal Nerve)
Pulls Mandible Forward (Protrusion), Depresses mandible, opens jaw.

Front 19

Medial Pterygoid
Origin
Insertion
Nerve
Action

Back 19

Lateral Pterygoid Plate
Angle of Mandible
Mandibular division of CN V3 (Trigeminal Nerve)
Elevates Mandible, Protrudes, closes Jaw

Front 20

Omohyoid
Origin
Insertion
Nerve
Action

Back 20

Scapula
Hyoid
Ansa Cervicalis
Depresses hyoid bone

Front 21

Sternohyoid muscle
Nerve
Action

Back 21

Ansa Cervicalis
Depresses Hyoid

Front 22

Thyrohyoid
Nerve
Action

Back 22

Ansa Cervicalis
Depresses Hyoid

Front 23

Sternohyoid
Nerve
Action

Back 23

Ansa Cervicalis
Depresses Hyoid

Front 24

What muscles act on the TMJ (4)?
What does each do?

Back 24

Medial (Elevates mandible, protrudes, closes jaw) and Lateral (Protrusion, depression, opens jaw) Pterygoid,
Masseter (elevates, retracts, protracts), and Temporalis.

Front 25

What is the nerve and artery supply of the TMJ? What is this nerve a branch of?

Back 25

Artery Supply: Superficial temporal artery (terminal branch of external carotid).

Nerve Supply: Auriculotemporal (branch of CN V3) (both sensory and motor nerve) (splits the Middle Meningeal Artery)

Front 26

Sternocleidomastioid
Nerve (what structure does this nerve exit?)
Action

Back 26

CNXI (Spinal Accessory) - exits the jugular foramen
Flex and rotate head, accessory in inspiration.

Front 27

Anterior Scalene Muscle
Nerve
Action
What structure is this muscle medial to?

Back 27

Cervical Nerve Branches 3-6
Laterally Flexes, Rotates the Cervical Part of the Vertebral Column and Elevates First Rib; acessory muscle of inspiration
Brachial Plexus

Front 28

Middle Scalene Muscle
Nerve
Action
What structure is this muscle just posterior and adjacent to?

Back 28

Cervical Nerve Branches 3-6

Laterally Flexes, Rotates the Cervical Part of the Vertebral Column and Elevates First Rib; acessory muscle of inspiration
Brachial Plexus

Front 29

Posterior Scalene Muscle
Nerve
Action

Back 29

Cervical Nerve Branches 3-6

Lateral Flexion of Vertebral Column, Elevates the Second Rib; acessory muscle of inspiration

Front 30

Stylopharyngeus
Nerve - What structure does this nerve exit through?

Back 30

CN IX (Glossopharyngeal Nerve)
Exits jugular foramen

Front 31

What muscles does CN XII innervate? What structure does this nerve exit through?

Back 31

Hypoglossal nerve innervates all muscles of the tongue except Palatoglossus. it exits the skull through the Hypoglossal canal.

Front 32

What structure comes out of the Carotid Canal?

Back 32

Carotid Artery

Front 33

What is special about the Foramen Lacerum?

Back 33

It is made of fibrocartilage, not bone.

Front 34

What structures pass through the foramen Magnum?

Back 34

Medulla oblongata, vertebral arteries, Spinal roots of CN XI (Accessory Nerve)

Front 35

What structures pass through the foramen ovale?

Back 35

Mandibular division of trigeminal nerve (CN V3) and accessory meningeal artery.

Front 36

What muscles does CN XII innervate? What structure does this nerve exit through?

Back 36

Hypoglossal nerve innervates all muscles of the tongue except Palatoglossus. it exits the skull through the Hypoglossal canal.

Front 37

What structures pass through the foramen rotundum?

Back 37

Maxillary division of trigeminal nerve (CN V2)

Front 38

What is special about the Foramen Lacerum?

Back 38

It is made of fibrocartilage, not bone.

Front 39

What structures pass through foramen spinosum?

Back 39

Middle meningial artery.

Front 40

What structures pass through the foramen Magnum?

Back 40

Medulla oblongata, vertebral arteries, Spinal roots of CN XI (Accessory Nerve)

Front 41

What nerve passes through the hypoglossal canal?

Back 41

Hypoglossal nerve (CN XII)

Front 42

What structures pass through the foramen ovale?

Back 42

Mandibular division of trigeminal nerve (CN V3) and accessory meningeal artery.

Front 43

What structures pass through the internal acoustic meatus?

Back 43

Facial nerve CN(VII) and vestibulocochlear nerve (CN VIII)

Front 44

What structures pass through the inferior orbital fissure?

Back 44

Maxillary nerve (CN V2)

Front 45

What structures pass through the inferior orbital fissure?

Back 45

Maxillary nerve (CN V2)

Front 46

What structures pass through foramen spinosum?

Back 46

Middle meningial artery.

Front 47

What nerve passes through the hypoglossal canal?

Back 47

Hypoglossal nerve (CN XII)

Front 48

What structures pass through the internal acoustic meatus?

Back 48

Facial nerve CN(VII) and vestibulocochlear nerve (CN VIII)

Front 49

What structures pass through the inferior orbital fissure?

Back 49

Maxillary nerve (CN V2)

Front 50

What structures pass through the jugular foramen?

Back 50

Glossopharyngeal Nerve (IX), Vagus Nerve (CN X), XI and Sigmoid Sinus (becomes jugular vein)

Front 51

What structures pass through the optic canal?

Back 51

Optic Nerve and Opthalmic artery

Front 52

What structures pass through the stylomastoid foramen?

Back 52

Facial nerve (CN XI)

Front 53

What are the 6 branches of the Facial Nerve?

Back 53

Temporal, Zygomatic, mandibular, cervical, posterior auricular, and buccal.

Front 54

What structures pass through the superior orbital fissure?

Back 54

Occulomotor nerve (CN III), abducens nerve (VI), trochlear nerve (IV) and Ophthalmic nerve (V1)

Front 55

What are the branches of the facial artery?

Back 55

Inferior Labial Artery
Superior Labial Artery
Lateral Nasal Branch
Angular Artery

Front 56

What bone is the mastoid process on? What two muscles insert here?

Back 56

Temporal Bone
Sternocleidomastoid and the posterior belly of the digastric.

Front 57

Of the muscles of mastication, which ones open the jaw and which ones close the jaw?

Back 57

All close except for the lateral pterygoid.

Front 58

What two muscles originate on the zygomatic arch?

Back 58

Masseter and zygomaticus major.

Front 59

What two nerves innervate the buccinator. Which is the motor nerve and which is sensory? What is the branching?

Back 59

Facial nerve (Motor) and Buccal nerve (Sensory, off V3)

Front 60

What structures are in the submandibular triangle?

Back 60

Submandibular gland the hypoglossal nerve.

Front 61

What structures are in the carotid triangle?

Back 61

Carotid Artery, CN X (vagus) and XII (hypoglossal)

Front 62

What structure is in the occipital triangle?

Back 62

Brachial Plexus.

Front 63

What structures are in the subclavian triangle?

Back 63

Subclavian artery and vein.

Front 64

What nerve forms a loop through which the middle meningeal artery passes?

Back 64

auriculotemporal nerve

Front 65

Does the internal carotid artery branch in the neck? When does it branch?

Back 65

It branches once it passes through the carotid canal.

Front 66

What nerve/artery passes through the infraorbital foramen and along the groove in the floor of the orbit?

Back 66

Infraorbital nerve, artery, and vein.

Front 67

What passes through the supraorbital foramen?

Back 67

Supraorbital nerve, artery, and vein.

Front 68

What suture makes up the pteryion?

Back 68

Paretialsphenoid suture.

Front 69

What bones make up the naseon suture?

Back 69

The frontal bone and the nasal bone.

Front 70

What sutures make up the asterion?

Back 70

Lambdoidal suture, occipitalmastoid suture, and the parietal mastoid suture.

Front 71

What ligament attaches to the lingua just superior to the mandibular foramen?

Back 71

Sphenomandibular ligament

Front 72

What landmark does the dentist use to find the entrance of the inferior alveolar nerve? What ligament inserts here?

Back 72

The lingua. The sphenomandibular ligament.

Front 73

What two structures come off of the styloprocess of the temporal bone?

Back 73

Stylomandibular ligament and the stylohyoid muscle.

Front 74

The angular artery is a continuation of what other artery?

Back 74

The facial artery.

Front 75

Where does the lingual nerve come from?

Back 75

Mandibular division of trigeminal (V3)

Front 76

What two structures branch off of the maxillary artery at about the same point?

Back 76

Middle meningeal and the inferior alveolar artery.

Front 77

Which way do the fibers of the medial pterygoid run?

Lateral Pterygoid?

Back 77

Obliquely!

Transverse!

Front 78

Where does the internal jugular vein drain?

Back 78

It meets with the subclavian vein to form the brachiocephalic vein. The two brachiocephalic veins then come together to form the superior vena cava.

Front 79

What two structures branch off of the maxillary artery at about the same point?

Back 79

Middle meningeal and the inferior alveolar artery.

Front 80

Which way do the fibers of the medial pterygoid run?

Lateral Pterygoid?

Back 80

Obliquely!

Transverse!

Front 81

Where does the internal jugular vein drain?

Back 81

It meets with the subclavian vein to form the brachiocephalic vein. The two brachiocephalic veins then come together to form the superior vena cava.

Front 82

What portion of the brachial plexus passes between the middle scalene and anterior scalene muscles?

Back 82

Roots C5,6,7,8, and T1

Front 83

What does the lingual nerve innervate?

Back 83

The anterior 2/3 of the tongue.

Front 84

What nerve innervates the posterior 2/3 of the tongue?

Back 84

The hypglossal nerve.

Front 85

What structures are in the carotid sheath?

Back 85

Internal jugular, Vagus Nerve, and common carotid.