Oral Cavity Flashcards Preview

Anatomy > Oral Cavity > Flashcards

Flashcards in Oral Cavity Deck (16)
Loading flashcards...
1
Q

Hard Palate

A

hard surface against which the tongue presses during phonation (speech) and food is
compressed during mastication; also serves as the attachment site for the upper teeth; consists of incisive fossa, greater and lesser foramen
supplied by: sphenopalatine and greater palatine

2
Q

Soft Palate

A

important muscles for swallowing,chewing, and making sure we don’t choke; consists of 5 muscles:

  • tensor veli palatini (V3)
  • levator veli palatini (CN 10)
  • musculus uvulae (CN 10)
  • palatoglossus (CN 10)
  • palatopharyngeus (CN 10)

Supplied by: lesser palatine, ascending palatine, palatine artery, dorsal lingual

3
Q

Tensor Veli Palatini

A

extends hard palate by tensing the soft palate; opens the auditory tube

4
Q

Levator Veli Palatini

A

elevates soft palate

5
Q

Palatoglossus m.

A

Elevates the posterior tongue; draws the soft palate to the tongue

6
Q

Palatopharyngeus m.

A

Tenses the soft palate; pulls the walls of pharynx superiorly, anteriorly, and medially during swallowing

7
Q

Extrinsic Tongue Muscles

A
Adjust position of the tongue (ex: stick tongue out) 
There are 4: 
-Genioglossus (CN 12)
-Hyoglossus (CN 12)
-Styloglossus (CN 12) 
-Palatoglossus (CN 10)
8
Q

Mylohyoid

A

forms the floor of the oral cavity; so it is the first muscle that lines the mandible

9
Q

Intrinsic Tongue Muscles

A
Adjusts the shape of the tongue 
There are 4: 
-Superior longitudinal 
-Inferior longuitudinal 
-Transverse 
-Vertical
10
Q

Sensation innervatation posterior 1/3 of actual tongue

A

general- CN 9- Glossopharyngeal, lingual branch

special- taste- CN 9, lingual branch

11
Q

Sensation innervation anterior 2/3 of actual tongue

A

general -CN 5 V3 branch- Lingual n. (ice cream feels cold)

special- chorda tympani n branch of CN 7 (ice cream tastes sweet)

12
Q

Sensory Innervation for hard and soft palates

A

branches of V2

13
Q

Nasopalatine n.

A

sensory innervation for anterior hard palate

14
Q

Greater palatine n.

A

provides sensory innervation to hard palate

15
Q

Lesser palatine n.

A

provides sensory innervation to soft palate

16
Q

Muscles of Mastication

A
  • Temporalis
  • Masseter
  • Medial Pterygoid m.
  • Lateral Pterygoid m.

They all close the jaws except the lateral pterygoid muscle which opens it.
All are supplied by branches of the mandibular nerve (V3)