Soft Palate / Divisions of Pharynx (MT)

Question 1

Tensor Veli Palatini Origin and Insertion

Answer 1

Origin:

• Scaphoid Fossa
• Entire length of fibrous part of Auditory tube
• Spine of Sphenoid

Insertion:
Palatine Apopneurosis

Question 2

Levator Veli Palatini Origin and Insertion

Answer 2

Origin:
Pertrous Part of the Temporal bone Anterior to Carotid Canal

Insertion:
Palatine Aponeurosis

Question 3

Palatopharyngeus Origin and Insertion

Answer 3

Origin:
Palatine Aponeurosis

Insertion:
Pharyngeal Wall

Question 4

Palatoglossus Origin and Insertion

Answer 4

Origin:
Palatine Aponeurosis

Insertion:
Lateral Tongue

Question 5

Musculus Uvulae Origin and Insertion

Answer 5

Origin:
Central Posterior Hard Palate (posterior nasal spine)

Insertion:
Uvula

Question 6

Tensor Veli Palatini Innervation and Action

Answer 6

Innervation:
V3 branch to medial pterygoid

Action:

• Tense Soft Palate
• Open Auditory Tube

Question 7

Levator Veli Palatini Innervation and Action

Answer 7

Innervation:
X via Pharyngeal Plexus

Action:
Elevate Soft Palate

Question 8

Palatopharyngeus Innervation and Action

Answer 8

Innervation:
X via Pharyngeal Plexus

Action:
- Depress Soft Palate
or
- Elevate Pharynx 
- Narrow Fauces

Question 9

Palatoglossus Innervation and Action

Answer 9

Innervation:
X via Pharyngeal Plexus

Action:
- Depress Soft Palate
or
- Elevelate Rear of Tongue
- Narrow Fauces

Question 10

Musculus Uvulae Innervation and Action

Answer 10

Innervation:
X via Pharyngeal Plexus

Action:

• Thickens Soft Palate
• Shortens Uvula

Question 11

Nasopharynx GSA supply

Answer 11

• CN V2 - maxillary

- CN IX - glossopharyngeal

Question 12

Oropharynx GSA supply

Answer 12

• CN IX - Glossopharyngeal

Question 13

Laryngopharynx GSA supply

Answer 13

• CN X - Vagus

Question 14

Nasopharynx Structures/Spaces Present

Answer 14

• Choanae
• Pharyngeal Tonsil
• Pharyngeal Recess
• Torus Tubaris/Auditory Tube Opening
• Salpingopharyngeal fold

Question 15

Oropharynx Structures/Spaces Present

Answer 15

• Soft Palate
• Uvula
• Palatopharyngeal Folds
• Palatoglossal Folds

Question 16

Larygopharynx Structures/Spaces Present

Answer 16

• Epiglottis
• Aryepiglottic Folds
• Laryngeal Inlet
• Mucosa Over Arytenoid Cartilages
• Posterior Aspect of Cricoid Cartilage (lamina)
• Piriform Recess

Question 17

What muscles of the soft palate are innervated by the vagus n. (X) via pharyngeal plexus?

Answer 17

1. Levator Velii Palatini
2. Palatopharyngeus
3. Palatoglossus
4. Musculus Uvulae

Question 18

What muscle of the soft palate is not innervated by CNX?

Answer 18

Tensor Veli Palatini (V3 branch of medial pterygoid)

Question 19

Which muscles of the soft palate elevate the palate and which depress it?

Answer 19

Elevate:
Levator Veli Palatini

Depress:
Palatopharyngeus
Palatoglossus

Question 20

Which muscles of the soft palate act to narrow the fauces?

Answer 20

• Palatopharyngeus
• Palatoglossus
• Muscularis Uvulae

Question 21

Which muscles of the soft palate originate from the palatine aponeurosis and which insert there?

Answer 21

Originate:
Palatopharyngeus
Palatoglossus

Insert:

• Tensor Veli Palatini
• Levator Veli Palatini

Question 22

What is the nerve supply to the OUTER aspect of the gingiva?

• Mandible
• Maxilla

Answer 22

Mandible:

• Buccal n.
• Mental n.

Maxilla:

• Posterior Superior Alveolar n.
• Infraorbital n.

Question 23

What is the nerve supply to the INNER aspect of the gingiva?

• Mandible
• Maxilla

Answer 23

Mandible:
- Lingual n.

Maxilla:

• Greater Palatine n.
• Nasopalatine n.