depresses mandible, runs from chest through neck to mandible
platysma
drawstring, pulls lips closer together
orbicularis oris
paired bone, contains the zygomatic process, mastoid process, styloid process, external auditory meatus
temporal bone
runs the length of the tongue, pulls tip down, retracts/deviates tongue
inferior longitudinal muscle
originates at median fibrous septum, narrows tongue
transverse muscles
primary mover of tongue, most of tongue's bulk
genioglossus
horizontal plate makes up posterior 1/4 of hard palate, paired bone, posterior wall of nasal cavity
palatine bone
pulls sides of tongue down
hyoglossus
elevates and retracts angle of mouth, origin cheekbone
zygomatic major
muscle of tongue/velum, depresses soft palate and elevates back of tongue
palatoglossus muscle
retracts lip corners, tightens cheeks
buccinator
form the cheekbones, paired bones
zygomatic bones
houses the upper teeth, is a paired bone
the maxillae
pulls tongue back and up, originates on styloid process of temporal bone
styloglossus
What is the source-filter theory?
states that the vocal folds create voicing- the source- and the sound is routed through the vocal tract and then shaped into sounds- filter
pulls corners of mouth up (caninus)
levator anguli oris
laughing muscle, retracts corners of mouth
risorius
paired, form the medial wall of eye socket
lacrimal bones
protrudes low lip, elevates and wrinkles chin and pulls lower lip out
mentalis
The mobile articulators include...
tongue, mandible, velum, lips, cheeks, fauces & pharynx, larynx & hyoid bone
pulls lower lip down and out
depressor labii inferioris
depresses lip corners, helps produce frown
depressor anguli oris (triangularis)
runs the length of the tongue, elevates/retracts/deviates tongue tip
superior longitudinal muscle
joins the inferior tongue to the mandible
lingual frenulum
runs at right angles to transverse and flatten tongue
vertical muscles