Soft Palate / Divisions of Pharynx (MT) Flashcards
Tensor Veli Palatini Origin and Insertion
Origin:
- Scaphoid Fossa
- Entire length of fibrous part of Auditory tube
- Spine of Sphenoid
Insertion:
Palatine Apopneurosis
Levator Veli Palatini Origin and Insertion
Origin:
Pertrous Part of the Temporal bone Anterior to Carotid Canal
Insertion:
Palatine Aponeurosis
Palatopharyngeus Origin and Insertion
Origin:
Palatine Aponeurosis
Insertion:
Pharyngeal Wall
Palatoglossus Origin and Insertion
Origin:
Palatine Aponeurosis
Insertion:
Lateral Tongue
Musculus Uvulae Origin and Insertion
Origin:
Central Posterior Hard Palate (posterior nasal spine)
Insertion:
Uvula
Tensor Veli Palatini Innervation and Action
Innervation:
V3 branch to medial pterygoid
Action:
- Tense Soft Palate
- Open Auditory Tube
Levator Veli Palatini Innervation and Action
Innervation:
X via Pharyngeal Plexus
Action:
Elevate Soft Palate
Palatopharyngeus Innervation and Action
Innervation:
X via Pharyngeal Plexus
Action: - Depress Soft Palate or - Elevate Pharynx - Narrow Fauces
Palatoglossus Innervation and Action
Innervation:
X via Pharyngeal Plexus
Action: - Depress Soft Palate or - Elevelate Rear of Tongue - Narrow Fauces
Musculus Uvulae Innervation and Action
Innervation:
X via Pharyngeal Plexus
Action:
- Thickens Soft Palate
- Shortens Uvula
Nasopharynx GSA supply
- CN V2 - maxillary
- CN IX - glossopharyngeal
Oropharynx GSA supply
- CN IX - Glossopharyngeal
Laryngopharynx GSA supply
- CN X - Vagus
Nasopharynx Structures/Spaces Present
- Choanae
- Pharyngeal Tonsil
- Pharyngeal Recess
- Torus Tubaris/Auditory Tube Opening
- Salpingopharyngeal fold
Oropharynx Structures/Spaces Present
- Soft Palate
- Uvula
- Palatopharyngeal Folds
- Palatoglossal Folds
Larygopharynx Structures/Spaces Present
- Epiglottis
- Aryepiglottic Folds
- Laryngeal Inlet
- Mucosa Over Arytenoid Cartilages
- Posterior Aspect of Cricoid Cartilage (lamina)
- Piriform Recess
What muscles of the soft palate are innervated by the vagus n. (X) via pharyngeal plexus?
- Levator Velii Palatini
- Palatopharyngeus
- Palatoglossus
- Musculus Uvulae
What muscle of the soft palate is not innervated by CNX?
Tensor Veli Palatini (V3 branch of medial pterygoid)
Which muscles of the soft palate elevate the palate and which depress it?
Elevate:
Levator Veli Palatini
Depress:
Palatopharyngeus
Palatoglossus
Which muscles of the soft palate act to narrow the fauces?
- Palatopharyngeus
- Palatoglossus
- Muscularis Uvulae
Which muscles of the soft palate originate from the palatine aponeurosis and which insert there?
Originate:
Palatopharyngeus
Palatoglossus
Insert:
- Tensor Veli Palatini
- Levator Veli Palatini
What is the nerve supply to the OUTER aspect of the gingiva?
- Mandible
- Maxilla
Mandible:
- Buccal n.
- Mental n.
Maxilla:
- Posterior Superior Alveolar n.
- Infraorbital n.
What is the nerve supply to the INNER aspect of the gingiva?
- Mandible
- Maxilla
Mandible:
- Lingual n.
Maxilla:
- Greater Palatine n.
- Nasopalatine n.
