1. Articulation Lecture 12

2. Function
Lip (Labial) Muscles
Pucker
Orbicularis oris, Incisivus labii
Lateralize
Buccinator, Risorius
Angle up (smile)
Zygomatic, Levator anguli oris
Upper lip
Levator labii, Depressor anguli oris
Lower lip
Depressor labii, Mentalis, Levator anguli oris

3. Function
Tongue (Lingual) Muscles
Shorten
Longitudinal (superior, inferior)
Tip up/down
Superior longitudinal/Inferior longitudinal
Narrow/flatten
Transverse/Vertical
Move forward
Genioglossus*
Move back
Genioglossus, Styloglossus*, Hyoglossus*
Move up
Styloglossus, Palatoglossus*
Move down
Genioglossus, Hyoglossus
*Know what structures they connect

4. Function
Soft Palate (Velum)
Lower
Tensor veli palatini*, Palatoglossus
Raise
Levator veli palatini*, Musculus uvulae*

5. Oral Cavity Lips Teeth Tongue Palate Mandible Hard Soft
Zemlin, pg 227.

6. Mandible Only moveable bone in the face
Connects to the temporal bone via temporomandibular joint (connected via temporomandibular ligament)

7. Mandible: Lowering Digastricus Mylohyoid &Geniohyoid
Connect temporal bone (mastoid process) and mandible
Mylohyoid &Geniohyoid
Connect jaw and hyoid
Contraction: raise hyoid, depress jaw

8. Mandible: Lowering Mylohyoid Geniohyoid Digastricus

9. Mandible: Protrusion External (Lateral) Pterygoid
Connect pterygoid and jaw
Contraction: protrudes jaw

10. Mandible: Elevation Masseter Internal (Medial) Pterygoid Temporalis
Connects zygomatic arch and jaw
Connects pterygoid and jaw
Temporalis
Connects temporal bone and jaw
Also used in jaw retraction

11. Function
Mandible (Jaw) Muscles
Lower
Diagastricus, Mylohyoid, Geniohyoid
Raise
Masseter, Temporalis, Internal pterygoid
Protrude
External Pterygoid
Retract
Temporalis

12. Speech Physiology

13. Consonants B/P T/D Bring lips together Elevate tongue tip Lower jaw
Lower tongue tip
Pull lower lip down

14. Consonants K/G Th Raise back of tongue Move tongue forward
Lower back of tongue
Move tongue back

15. Resonance
Not only affected by the length of the vocal tract, but also by vocal tract shape
Many vowel sounds in English
Corner vowels: the most extreme differences in tongue placement

16. Resonance F1: pharynx F2: oral cavity
Titze, I.R. (2000). Principles of Voice Production.

17. Nasal Sounds

18. Nose Mostly composed of cartilage
Septum: divides the two halves of the nose internally
Composed of cartilage and bone
Upper third = bone
Lower two-thirds = cartilage

19. Nasal Resonance
When the soft palate is lowered (Tensor veli palatini, Palatoglossus), air enters the nose
Resonance between Hz