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COMD 3100 , Exam 4: Part 5
Terms in this set (63)
Regions of the tongue
Ways to describe the tongue:
-Inferior Surface (Sublingual Folds and Lingual Frenulum)
When the Lingual Frenulum is too short or too tight and tongue won't move past teeth, what is the name of that disorder?
Ways to describe Ankyloglossia....
-short,thick or tight lingual frenulum
-restricted range of motion of the tongue
-may have difficulty sticking out tongue
-May affect infant feeding
-may affect speech articulation
-may require surgical procedure for treatment
What are the Intrinsic Tongue Muscles?
What are muscles within the tongue that help with fine motor movements for speech by shaping the tongue?
Intrinsic Muscles of the tongue
Which muscle from the intrinsic muscles elevates the tip of tongue and pulls tongue to the side?
Which muscle from the intrinsic muscles pulls tip of tongue downward, assists in tongue retraction, and pulls tongue to the side?
Which two intrinsic muscles sit together and almost interwoven?
Transverse and Vertical Muscles
Which intrinsic muscle runs from side to side when contracted and narrows the tongue and makes it thinner?
Which intrinsic muscle runs from front to back , flattens tongue, and pulls tongue down into the floor of the mouth?
What are the extrinsic tongue muscles?
Which groups of muscles cause major movements in the tongue and make up the bulk of the gross motor movements ?
Extrinsic Tongue Muscles
Which extrinsic muscle is located towards the base of the tongue and has Anterior and Posterior Fibers?
What is the function of the anterior fibers of the Genioglossus?
Retract the tongue
What is the function of the posterior fibers of the Genioglossus?
Protrude the tongue
What happens when the Anterior and Posterior fibers of the Genioglossus both contract?
Depresses the tongue
What is the function of the Hyoglossus?
Pulls sides of the tongue down
What is the function of the Styloglossus?
Draws tongue back and up
Which extrinsic muscle of the tongue makes up the anterior faucial pillar?
Palatoglossus (located between the tongue and palate)
What is the function of the Palatoglossus?
Elevates back of tongue and depresses soft palate
How are the muscles of mastication categorized?
-Protrusion-Push mandible forward
What are the mandible elevators?
-Medial Pterygoid muscle
What is the big chewing muscle for chomping and biting?
Where is the origin of the masseter?
Zygomatic bone and wraps down beneath mandible
What is the function of the masseter?
What is the origin of the Temporalis and where does it insert?
Temporal bone & inserts into the coronoid process of the mandible
What is the function of the Temporalis?
Elevates mandible and draws it back if mandible was protruded
Where is the origin of the Medial Pterygoid?
Medial Pterygoid plate of the sphenoid bone and inserts onto mandible (underneath the masseter lateral pterygoid muscle)
What is the function of the Medial Pterygoid?
What is the only mandibular protrusion?
Lateral Pterygoid Muscle
What is the origin of the Lateral pterygoid muscle?
Lateral pterygoid plate of the sphenoid bone, wraps around and attaches to the zygomatic bone.
What is the function of the Lateral pterygoid muscle?
Protrudes the mandible
What are the mandibular depressors?
All their functions are to depress the mandible
Which mandibular depressor has an anterior belly and posterior belly?
Which mandible depressor is located between the anterior bellies of the digastricus?
Which mandible depressor is the big muscle coursing down the neck?
How are the muscles of the soft palate categorized?
What are the palatal Elevators?
-Levator Veli Palatini-roof of mouth
-Musculus Uvulae-right at the uvulae
Which one elevates the soft palate and makes up bulk of soft palate?
Levator Veli Palatini (roof of mouth)
Which one elevates and retracts the soft palate and makes up structures of the uvul?
What are the palatal depressors?
-Palatoglossus (elevator of the tongue & depressor of the soft palate)
Which one depresses the soft palate and elevates the tongue as well as forming the anterior faucial pillar?
Which one is posterior to Palatoglossus, depresses soft palate, assists in narrowing pharyngeal cavity, and forms the posterior faucial pillar?
What is the only Palatal Tensor?
Tensor Veli Palatini (roof of mouth)
What stabilizes and flattens the soft palate?
Tensor Veli Palatini
Which one dilates the Eustachian tube?
Tensor Veli Palatini
What describes a Velopharyngeal Dysfunction?
-Weakness or impairment of velar function
-Hyper nasal speech
Velum must be elevated for all English sounds except .........
/m/, /n/, and /ing/
What are all the muscles of the pharynx ?
-Superior Pharyngeal Constrictor
-Middle Pharyngeal Constrictor
-Inferior Pharyngeal Constrictor
What pulls the posterior pharyngeal forward, constricts pharyngeal diameter to aid in deglutition, and assists in velopharyngeal closure?
Superior Pharyngeal Constrictor
Which muscle only narrows diameter of pharynx?
Middle Pharyngeal Constrictor
What reduces diameter of lower pharynx?
Inferior Pharyngeal Constrictor (AKA Thyropharyngeaus & Lower Pharyngeal Constrictor)
Which muscle reduces diameter of lower pharynx, is the muscular opening of the esophagus, and sits right above the esophagus?
Which muscle elevates and opens the pharynx during deglutition?
The tongue is drawn back and up by the ___________ muscle.
The _____________ muscle is responsible for mandibular protrusion.
The muscle that forms the anterior facial pillar is the _____________________.
The middle pharyngeal constrictor narrows the diameter of the pharynx. True or False
The muscle that pulls the sides of the tongue down is the ________________.
The genioglossus is a muscle of mastication. True or False
The function of the Levator Veli Palatini is to ___________________.
Elevate the soft palate
Which of the following muscles aid in velopharyngeal closure?
Superior Pharyngeal Constrictor
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