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Exam 3-Palate
palate
16
Anatomy
Pre-School
08/16/2011

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Cards

Term
Palate Overview
Definition

-Roof of mouth and floor of nasal cavity

-Division of oral and nasal portions of pharynx

-Arched transversely and anteroposteriorly 

-Two parts: anterior2/3=hard palate 

posterior 1/2=soft palate 

Term

Hard Palate

 

Definition

-Formed by palatine processes of maxilla/palatine

-Foramina: Incisive, greater/lesser palatine

-Contains palatal glands

-Mucoperiosteum presents median raphe and several transverse palatine folds, rugae

Term
Soft Palate
Definition

-Moveable, fibromuscular fold

-Suspends from posterior edge of hard palate

-Laterally attached to walls of pharynx 

-has 2 lateral folds arching downward

-framework formed by aponeuerosis of tensor veli palatini muscle

-Function: close off nasopharynx from oropharynx in speech and swallowing

Term

Muscles of Soft Palate 

 

Palatoglossus (anterior arch)

Definition

-Origin: palatine aponeurosis

-Insertion: side of tongue

-Action: elevates posterior portion of tongue

 

Term

Muscles of Soft Palate

 

Palatopharyngeus

 

Definition

-origin: palatine aponeurosis

-Insertion: side of pharynx 

-Action: elevates walls of pharynx upward, elevates larynx 

Term

Muscles of Soft Palate

 

Levator veli palatini

 

Definition

-origin: scaphoid fossa, auditory tube

 

-Insertion: palatine aponeurosis 

 

-Action: tenses soft palate

Term

Muscles of soft palate

 

tensor veli palatini

Definition

-origin: scaphoid fossa, auditory tube

 

-insertion: palatine aponeurosis

 

-Action: tenses soft palate 

Term

Muscles of soft palate

 

Musculus Uvulae 

Definition
-assists in closing nasopharynx during swallowing
Term

Innervation of palate 

 

Motor

Definition

-all by CN XI via X (pharyngeal plexus)

 

-except tensor veli palatini m (CN V3)

Term

Innervation of palate

 

Sensory

Definition

-All from maxillary n (CN V2)

 

-Greater palatine n (hard palate) 

-Lesser palatine n. (soft palate)

-Nasopalatine n.(Anterior hard palate) 

Term

Blood supply of the palate

 

 

Definition

-Greater and lesser palatine arteries (maxillary a)

 

-Ascending palatine artery (facial a)

Term

Palatine Tonsils

 

Overview

Definition

-Lymphoid tissue

-Lies between palatoglossal and palatopharyngeal folds

-Varies in size and site of inflammation

-Part of tonsillar circle(Waldeyer's Wing)

Term

Palatine Tonsils

 

Blood supply

Definition

-Facial a: 1. Tonsillar branch (primary)

2. Ascending palatine a

-Ascending pharyngeal a

-Lesser Palatine a (from maxillary a)

-Dorsal lingual a

 

Term

Palatine Tonsils 

 

Innervation 

 

Definition
-Tonsilar plexus formed by glossopharyngeal and vagus nerves 
Term

Retromolar Triangle

 

Definition

-behind 3rd mandibular molar

-Bounded by medial and lateral alveolar crests

-At apex, posteriorly attaches to the pterygomandibular raphe

Term

Retromolar Region Relationships

 

Key Structure, lateral, posterior, medial, inferior

Definition

-Key Structure: Pterygomandibular raphe

-Lateral: Buccinator m

-Posterior: Superior constrictor m.

-Medial: Palatoglossal arch

-Inferior: Styloglossus m, lingual n., sublingual gland

NOTE: KEY TO Inferior Alveolar N Block

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