articulation lecture 18 Flashcards
what are the muscles of the velum
levator veli palatini, muscularus uvulae, tensor veli palatini, palatopharyngeus
where does the levator veli palatini arise and insert
arises from petrous portion inserts into soft palate lateral to uvulae
levator veli palatini elevates and retracts what
the soft palate
levator veli palatini is innervated by what
accessory and vagus nerve
what is muscularus uvulae
a muscle embodied within the uvulae
runs from palatine bones to sides of velum
shortens the soft palate
innervated by accessory and vagus nerve
muscularus uvulae goes from where to where
palatine bones to sides of velum
muscularus uvulae innervated by what
accessory and vagus
where does tensor veli palatini arise and insert
arises from sphenoid bone and lateral eustachian tube wall and inserts into palatine bone
what does tensor veli palatini do
dilates eustachian tube
tensor veli palatini innervated by what
trigeminal
where does palatopharyngeus originate and insert
originates from anterior hard palate and inserts into posterior thyroid cartilate
what does palatopharyngeus do
narrowing pharyngeal cavity
lowers soft palate
assists in elevating larynx
palatopharyngeus innervated by what
accessory and vagus
what are the muscles of the pharynx
superior pharyngeal constrictor, middle pharyngeal constrictor, inferior pharyngeal constrictor, salpingopharyngeus
what is the superior pharyngeal constrictor
- superior sleeve of pharyngeal wall attaching to temporal bone, medial pterygoid plate, and eustachian tube
- forms sides and back wall of nasopharynx and oropharynx
- pulls pharyngeal wall forward and constricts the pharyngeal diameter
- effects velopharyngeal seal
what does superior pharyngeal constrictor affect
velopharyngeal seal
superior pharyngeal constrictor innervated by what
accessory and vagus
middle pharyngeal constrictor
narrows diameter of pharyn
middle pharyngeal constrictor innervation
accessory and vagus
where does middle pharyngeal constrictor arise and insert
arises from horns of hyoid and inserts into medial pharyngeal raphe
where is superior pharyngeal constrictor
superior sleeve of pharyngeal wall attaching to temporal bone, medial pterygoid plate, and eustachian tube
where does inferior pharyngeal constrictor arise and insert
arises from sides of cricoid cartilage and inserts into orificie of esophagus
inferior pharyngeal constrictor does what
reduces diameter of lower pharynx and important muscle for swallowing
inferior pharyngeal constrictor innervation
accessory and vagus
where does salpingopharyngeus arise from
arises from lower portion of eustachian tube
salpingopharyngeus does what
converges with palatopharyngeus and shortens pharynx
salpingopharyngeus innervation
accessory and vagus
what part of the velum closes for non nasal speech
levator veli palatini
range of motion and rate of movement in velum matches what
needs of rapid speech and nonspeech functions
what requires greater velopharyngeal effort and which muscles help with that
the production of high pressure consonants
superior pharyngeal constrictor and uvular muscles
hard and soft palate in velum
richly endowed with receptors that provide feedback concerning pressure and they facilitate or inhibit motor lingual activity
muscle spindles in tensor veli palatini, palatoglossus, and levator velipalatini
where does masseter originate and insert
originates at zygomatic arch and inserts into angl/neck of mandible
what does masseter elevate/depress
elevates mandible, teeth clenched
masseter innervation
trigeminal
temporalis arises from and inserts where
arises from temporal fossa and inserts into coronoid process of mandible
what does temporalis elevate/depress
elevates mandible and draws it back
temporalis innervation
trigeminal
which muscles elevate mandible
masseter, temporalis, and medial pterygoid and lateral pterygoid
where does medial pterygoid originate and insert
originates from medial pterygoid plate and inserts into mandible neck/angle
what does medial pterygoid elevate/depress
elevates mandible in conjunction w masseter
where does lateral pterygoid arise and insert
arises from sphenoid bone and insert into pterygoid fovea of mandible
what does lateral pterygoid do to mandible
protrudes mandible
lateral and medial pterygoid innervation
trigeminal
digastricts originate where
anterior originates at inner surface of mandible and posterior originates from mastoid process
what does digastrics elevate/depress
depresses mandible
digastrics innervation
facial
mylohyoid originates and inserts where
originates from underside of mandible and fanlike muscle inserts into hyoid
mylohyoid elevates/depresses what
depresses mandible
mylohyoid innervation
trigeminal
geniohyoid originates and inserts where
originates at mental spines of mandible and inserts into corpus hyoid
geniohyoid is where
lies just under bodoy of tongue
geniohyoid elevates or depresses what
depresses mandible if hyoid is fixed
geniohyoid innervation
hypoglossal
