AnaPhy of Articulation Flashcards
Two types of articulators
Mobile and Immobile
Examples of Mobile Articulators
Tongue
Mandible
Soft Palate
Lips
Cheeks
Larynx & Hyoid bone
Examples of Immobile Articulators
Alveolar ridge
Hard Palate
Teeth
Structure that comes in contact with the tip/blade of the tongue to produce alveolar consonants
Alveolar ridge
Largest mobile articulator
Function: Creation of bolus for swallowing and Sensation
Tongue
Parts of the tongue
Superior-most portion
Resides within the oral portion
Makes up about ⅔ of the tongue
Dorsum
Parts of the tongue
⅓ of the tongue is within the pharyngeal portion
Resides in the oropharynx
Base
Parts of the tongue
Thinnest and narrowest part of the tongue
Tip / Apex
Parts of the tongue
Band of tissue that connects the tongue to the mandible
Lingual frenulum
LF is too short, needs surgical correction
Ankyloglossia
Parts of the tongue
Lingual frenulum is too short, needs surgical correction
Ankyloglossia
Parts of the tongue
Lateral to the LF
Where the ducts of our salivary glands are located
Sublingual folds
Parts of the tongue
Directly connected/attached to the mandible
Root
Both origin and insertion are within the tongue
Responsible for rapid, delicate movements for speech
CLUE: She Is Very Tall
Intrinsic Muscles
Superior Longitudinal
Inferior Longitudinal
Vertical
Transverse
Innervation of Intrinsic and Extrinsic Tongue Muscles (except Palatoglossus)
CN 12 (Hypoglossal)
Set the general posture/ position for articulation
Only one attachment is within the tongue
Moves tongue as a unit
Name: origin outside the tongue + “glossus”
CLUE: Girls Have Stylish Purses
Extrinsic Muscles
Genioglossus muscle
Hyoglossus muscle
Styloglossus muscle
Chondroglossus muscle - often considered as a part of the hyoglossus
Palatoglossus muscle
Innervation of Palatoglossus
CN 10, 11 (Pharyngeal Plexus)
Houses lower teeth and forms floor of the mouth
Functions:
Opening & closing of mouth
Chewing food
Mandible
Muscles of mastication that elevates and protrudes the tongue
CLUE: More Tea Less Milk
Masseter (E)
Temporalis (E)
Lateral Pterygoid (P)
Medial Pterygoid (E)
Muscles of mastication that depresses the tongue
CLUE: More Good Drinks Please
Mylohyoid
Geniohyoid
Digastricus Anterior
Digastricus Posterior
Platysma
Innervation of all mandibular muscles for elevation and protrusion
CN V3 (Mandibular Branch)
Lower dental arch is part of the mandible, upper dental arch is part of the maxillary
Main function:
Chewing
Helps produce speech sounds
Teeth
What is the function of the different types of teeth?
Incisors –
Canine –
Molars –
cutting, tearing, and grinding
Clinical eruption of the deciduous arch begins between __ and __ months of age
5 and 9 months of age
The permanent arch emerges between __ and __ years
6 and 9 years
Babies have __ deciduous teeth; adults have __ teeth
Babies - 20
Adults - 32
What class of Teeth Malocclusion is normal?
Class I
Which class of teeth malocclusion is it when the mandibular molars are retracted?
Class II
Which class of teeth malocclusion is it when the mandibular molars are advanced beyond maxillary?
Class III
Bony roof of the mouth and floor of nose
Hard Palate
Part of the hard palate that houses incisors
Premaxilla
Part of the hard palate that is included if a person has cleft lip
Premaxillary Suture
Part of the hard palate that is included if a person has cleft of the hard palate
Intermaxillary Suture
Part of the hard palate that houses molar, cuspid, bicuspid teeth
Alveolar Process
All muscles of the face are innervated by what cranial nerve?
CN 7 (Facial)
Lift upper lip; lifts the wing of the nostril(s)
CLUE: (N)ever Let Minors Make Risotto. Always Let Mom
Levator Labii Superioris Alaque (N)asi
Constricts the oral opening
Puckers lips
Orbicularis oris
“Lifter of the upper lip”
CLUE: Never (L)et Minors Make Risotto. Always Let Mom
Levator Labii Superioris
Origin at the zygomatic bone ; elevates the upper lip
CLUE: Never Let (M)inors Make Risotto. Always Let Mom
Zygomaticus Minor
Elevates angle of mouth
CLUE: Never Let Minors (M)ake Risotto. Always Let Mom
Zygomaticus Major
Retracts lips at corners
CLUE: Never Let Minors Make (R)isotto. Always Let Mom
**Think about joker
Risorius
Depresses corners of mouth
Compresses upper & lower lip
CLUE: Never Let Minors Make Risotto. (A)lways Let Mom
Depressor Anguli Oris
Pulls lips down
CLUE: Never Let Minors Make Risotto. Always (L)et Mom
Depressor Labii Inferioris
Pulls lower lip, wrinkles chin
CLUE: Never Let Minors Make Risotto. Always Let (M)om
Mentalis
Deeper Facial Muscles:
Draws corner of mouth upward
Levator Anguli Oris
Deeper Facial Muscles:
Moves food to molars for grinding
CLUE: (B)iting (u)r (c)heek
Buccinator
