Week 11 Flashcards
(43 cards)
What are the basic functions of the Superior Longitudinal muscle?
Shortens the tongue by contracting, pulls tip upward and downward, makes dorsal surface of tongue concave
Which of the following tongue movements or speech gestures most likely requires
activation of the superior longitudinal muscle?
A Flattening the tongue blade
B Curling the tongue tip upward
C Pulling the tongue upward and backward
D Pulling the tongue forward
B
What are the basic functions of the Inferior Longitudinal muscle?
Pulls tongue tip downward by contracting, gives tongue convex shape
True or false, the alveolar tap likely involves the inferior longitudinal muscle during articulation
True
Where does the transverse muscle originate and insert
originates at the lingual septum inserts into the lingual margin (= lateral edge of
the tongue)
What are the basic functions of the Transverse muscle?
narrows the tongue side-to-side, elongates and vertically thickens the tongue, helps in protrusion
What are the basic functions of the Vertical muscle?
▶ Pulls the upper surface of the tongue downward.
▶ The contraction of the vertical muscles flattens and widens the tongue.
▶ This action is somewhat opposite to that of the transverse muscle.
What is the location and structure of the Superior Longitudinal Muscle
▶ this muscle lies immediately beneath the mucous membrane on the upper surface of
the tongue,
▶ runs along the length of the tongue,
▶ consists of muscle fibers that run longitudinally from the root to the apex of the
tongue
What is the location and structure of the Inferior Longitudinal muscle
▶ located along the underside of the tongue,
▶ runs along either side of the genioglossus, medial to the hyoglossus muscles
▶ this muscle extends from the root towards the apex.
▶ it runs parallel to the superior longitudinal muscle but on the tongue’s under surface.
Say the word “moth”. Which one is true about the intrinsic muscles of the tongue for
the last consonant? (Choose the best option!)
A both verticalis and superior longitudinals are active
B both transversus and inferior longitudinals are active
C verticalis is active but superior longitudinals are not
D transversus is active but inferior longitudinals are not
A or C depending on how you speak but usually A
Which sequence should have an activation of the superior longitudinal muscles
A [ka-ka-ka-ka]
B [ma-ma-ma-ma]
C [la-la-la-la]
D [ba-ba-ba-ba]
C
Why is tongue bracing important
▶ Stability and Precision: Bracing provides an anchor, enhancing the precision of
sound production, especially in rapid or complex speech.
▶ Efficient Speech Production: By limiting movement options, bracing simplifies
control over the tongue, facilitating more efficient speech articulation.
▶ Feedback for Adjustment: Offers crucial somatosensory feedback, aiding in the
adjustment of tongue position and movement for accurate sound articulation.
What is tongue bracing
Contact made by the tongue with surfaces within the
oral cavity, such as molars or other teeth and palate regions, alongside the primary
articulation.
What are key functions of tongue bracing
Key functions include forcing airflow through specific locations, maintaining
stability and accuracy, and reducing the tongue’s degrees of freedom.
What is lateral bracing
Sides of the tongue contacting the inner sides of the
teeth or the upper lateral regions of the mouth
What is lateral bracing used for
▶ This bracing is crucial for sounds requiring airflow to be directed along the
tongue’s midline (along back to front).
▶ Provides a mechanism for achieving different shapes of the tube-like cavity by
stabilizing the tongue in the back
What is medial bracing
Tongue makes contact with the roof of the mouth
along its center
What is medial bracing used for
▶ Essential for sounds that direct airflow laterally along the sides of the tongue, such
as lateral fricatives and lateral approximants.
▶ Provides a mechanism for achieving a tight central seal while allowing air to escape
laterally.
Which type of bracing is more prevalent in speech you think?
A. Medial bracing
B. Lateral bracing
C. Both are approximately the same
B
Which of the following sound involves medial bracing:
A. [j]
B. [l]
C. [n]
D. [v]
B
What are approximant constrictions
Lingual constrictions that are not tight enough to disrupt airflow
What are turbulent constrictions
Tight constriction and specific tongue shapes
that accelerate airflow, causing turbulence
Does the degree of turbulence increase or decrease with constriction?
The degree of turbulence increases with the constriction, reaching a critical point
that maximizes turbulence for that location
What is the tongue shape for the sh sound?
domed anterior tongue shape to distribute airflow