Tongue Oropharynx Flashcards
What are the 4 valves of the vocal tract?
- Labial
- Lingual
- Velopharyngeal
- Laryngeal Valve
Anterior boundaries of the Oral Cavity?
lips, teeth, gums.
Posterior boundaries of the oral cavity?
pharynx, palatal glosses
Superior Boundary of the oral cavity?
Hard and soft Palate
Inferior Boundary of the oral cavity?
mylohyoid, geniohyoid.
Name 5 functions of the tongue.
- Taste
- Articulation
- Swallowing
- Chewing
- Making different sounds
Describe the differences between the oral and pharyngeal tongue.
The oral tongue is the front 2/3 within the oral cavity. The oral tongue includes the tip, blade, front and back.
The pharyngeal tongue is the back 1/3 (base). It is within the oropharynx.
What are the 4 intrinsic muscles of the tongue?
- superior longitudinal
- inferior longitudinal
- transverse
- vertical
What are the 4 extrinsic muscles of the tongue?
- Genioglossus
- styloglossus
- hyoglossus
- palatoglossus
What is the function of the superior longitudinal muscle?
-shorten tongue
-turn tip upward
-unilateral turning of the tip
What is the function of the inferior longitudinal muscle of the tongue?
-shortens tongue
-pulls tip downward
What is the function of the vertical muscle of the tongue?
-flattens and widens the tongue
Function of the genioglossus muscle?
–protrudes tongue
-depresses central portion
-curling action like whistling
Function of the styloglossus muscle?
-lifts sides of tongue
-pulls tongue backward
Function of the hyoglossus muscle?
-pulls sides of the tongue downward
-pulls tongue backward (retract)
