Oral Region

Question 1

Muscles of oral region

Answer 1

Orbicularis oris

Sup. and inf. labial muscles

Question 2

Blood supply oral region

Answer 2

superior branch facial artery

inf.

Question 3

Innervation

Answer 3

V2 upper
V2 lower (mandibular branch trigeminal nerve)

Question 4

Hard palate

Answer 4

Palatine process maxilla

Horizontal plates palatine bones

Question 5

Soft palate

Answer 5

ant: aponeurosis
post: muscular

connects to hard palate:palatine aponeurosis

Question 6

Muscles soft palate

Answer 6

elevate/depress

Tensor veli palatini
Levator veli palatini
Palatoglossus
Palatopharyngeus
Musculus uvulae

Question 7

Innervation muscles of soft palate

Answer 7

Pharyngeal branch of vagus (CN 10)

medial pterygoid nerve V3 -TVP

Question 8

Tongue Muscles

Answer 8

Extrinsic and intrinsic

Question 9

Extrinsic muscles of tongue

Answer 9

Move tongue

Palatoglossus (soft palate to tongue)
Styloglossus (tongue to styloid process)
Hyoglossus (tongue to hyoid bone)
Genioglossus (mandible to tongue)

Question 10

Intrinsic muscles of tongue

Answer 10

Change shape of tongue

Sup and Inf longitudinal: run length of tongue parallel to dorsum
Vertical
across tongue: Transverse

Question 11

Innervation tongue

Answer 11

Ant 2/3: lingual nerve (branch CN V3 mandibular division trigeminal nerve)-GENERAL sensation

CHORDA TYMPANI: branch CN 7 (facial nerve)-SPECIAL SENSATION (taste)

Post 1/3: Gen and special sensation: Glossopharyngeal (CN 9-general sensation) and Vagus (special such as taste)(CN 10)

Muscles: Hypoglossal (CN 12)
except palatoglossus: Vagus CN 10

Question 12

Fauces (Throat)

Answer 12

2 arches:

anterior: palatoglossus arch
posterior: palatopharyngeal arch

isthmus between: palatine tonsils

Question 13

Tensor veli palatini (TVP is superior and lateral to LVP)

Answer 13

Sphenoidal spine
Tissues around auditory tube

SOFT palate

ELEVATES soft palate

MEDIAL PTERYGOID NERVE (V3 of Trigeminal CN 5)

Question 14

Levator veli palatini

Answer 14

Petrous part TEMPORAL bone
Tissues around auditory tube

SOFT palate

Elevates Branches pharyngeal plexus (CN 10)

Question 15

Palatoglossus

Answer 15

Ant. surface soft palate

side tongue

elevates tongue, DEPRESSES SOFT PALATE

Internal branch Accessory Nerve CN 11/ Vagus nerve pharyngeal branch

Question 16

Palatopharyngeus

Answer 16

Palatine aponeurosis and hard palate

Upper border thyroid cartilage

Elevates pharynx

Pharyngeal branch Vagus (CN 10)

Question 17

Musculus uvulae

Answer 17

Post NASAL SPINE HARD palate

CT uvula

elevates and retracts uvula

Vagus nerve via pharyngeal plexus CN 10

Question 18

Styloglossus-extrinsic

Answer 18

Styloid process temporal bone

side to tip of tongue
base of tongue

RETRACTS tongue
elevates side of tongue

Hypoglossal nerve CN 12

Question 19

Hyoglossus-extrinsic

Answer 19

Body and greater horn hyoid bone

side tongue

DEPRESSES and retracts tongue

CN 12

Question 20

Genioglossus

Answer 20

medial mandible around mental/chin region

BODY of tongue, hyoid

DEPRESSES and PROTRACTS tongue

CN 12

Question 21

Submandibular gland

Answer 21

deep to MYLOHYOID MUSCLE

Question 22

PAROTID

Answer 22

1. EXTERNAL CAROTID ARTERY
2. Retromandibular vein
3. Facial nerve/ Parotid plexus

pierces BUCCINATOR

Question 23

Sublingual

Answer 23

smallest

between mandible and genioglossus (ext muscle tongue)