Head and Neck Anatomy

Facial Landmarks

100

What is the Labial Commissure?

upper and lower lips meet @ the corner

200

What is the nasio-labial groove?

Groove from corner of the nose, to corner of the mouth

300

What is the Philtrum?

V shaped space between the nose and lips

400

What is the labial mental groove?

The crease under the lips, and above the chin

500

What is the vermillion border

the outline of the lips

Skull Bones

100

Bone that contains the mastoid process

Temporal Bone

200

largest of the facial bones

Maxilla

300

bones that form the TMJ?

Temporal and Mandible

400

What bone is under the Ethmoid bone?

Palatine bone

500

Which bone forms the cheeks?

zygomatic

Nerves

100

Significange of the hyoid bone

the muscles of the tongue and the floor of the mouth attaches to this bone for support

200

Which nerve innervates the orbicularis oris (area around the eye)

Zygomatic nerve

300

What is the largest cranial nerve?

trigeminal nerve: branches into 3....

400

What 3 branches does the trigeminal nerve divide into?

Ophthalmic nerve

Maxillary nerve

Mandibular nerve

500

What are the 3 branches of the mandibular nerve?

Buccal/lingual/and inferior alveolar

Muscles

100

Which muscle is fan shaped?

Temporal

200

Name 3 of the 7 muscle categories of the head and neck.

1. Facial expression

2. neck

3. Tongue

4. Floor of mouth

5. Pharynx

6. Mastication

7. Soft palate

300

Name the muscles of mastication

Temporal

Masseter

Medial (internal) pterygoids

Lateral (external) pterygoids

400

Name 2/4 muscles of Facial Expression

1. Orbicularis oris

2. Buccinator

3. Mentalis

4. Zygomatic major

500

Explain the difference between intrinsic and extrinsic muscles of the tongue.

Intrinsic-works inside the tongue: responsible for shaping the tongue during speech/mastication/swallowing

Extrinsic muscles- outside: assist in movement/functioning of the tongue  (Genioglossus/hyoglossus/styloglossus)

Veins/Arteries

100

What are two types of veins?

Deep-maxillary

superficial-Facial,retromandibular

200

What four cranial nerves innervate the face and oral cavity is MOST important to dentistry?

Triqeminal V: it innvertes the most areas of the face-is affected by Bells Palsy 

300

The common carotid artery supplies blood to ...

internal carotid artery supplies blood to the....

external carotid artery supplies blood to the...

supplies blood to most of the head and neck

internal: supplies blood to the brain and eyes

external: supplies blood to the face and oral cavity

400

4 cranial nerves that innervate the face and oral cavity

Trigeminal nerve

facial nerve

glossopharyngeal nerve

hypoglossal nerve

500

What are the functions of the arteries and veins of the face and oral cavity?

supply blood & nutrients to the face & oral cavity; drain unoxygenated blood & waste products