Chapter 6 - Anatomy of Articulation and Resonation Flashcards
vocal tract
-nasal passages, oral cavity, larynx
pharynx
-laryngopharynx, oropharynx, nasopharynx
phoneme production (source-filter theory)
sound source: larynx (voiced), constriction of tract (voiceless)
filter: vocal tract
articulation
joining structures together
articulators
mobile articulators, immobile articulators
mobile articulators (5)
mandible, lips, tongue, velum, vocal folds
immobile articulators (3)
maxillae, hard palate, alveolar ridge
bones of the face (6)
mandible, maxillae, nasal bones, palatine bones, vomer, zygomatic bone
mandible (6 features) - unpaired
ramus, coronoid process, condylar process, mylohyoid process, mental symphysis, alveolar process
microagnathia
small mandible, not enough room for tongue and floor of mouth
maxillae anterior (5 features)
- 2 parts fused in the middle
frontal process, infraorbital margin, zygomatic process, nasal crest, alveolar process
maxillae underneath 5 features
intermaxillary suture (where the maxillae fuse together), premaxilla-fused by the premaxillary suture, incisive foramen, palatine process,
canine fossa - on top of canine teeth,
cleft lip
-premaxillary suture fails to fuse (unilateral or bilateral)
-may or may not include alveolar process
SLP concerns with cleft lip
feeding/swallowing, articulation, resonance (not usually affected)
maxillary deficiency or maxillary hypoplasia
maxilla is underdeveloped
occlusion
upper and lower teeth into alignment
class I occlusion
normal orientation of mandible and maxillae
class II malocclusion
retracted mandible
class III malocclusion
advanced mandible
overbite vs overjet
overbite is vertical (whole lower teeth is covered)
overjet is horizontal (there’s a wide gap only)
parts of the nasal septum
vomer, perpendicular plate of the ethmoid bone, septal cartilage (there’s also the nasal bone)
what bone forms the cheekbone?
zygomatic bone
what makes up the posterior wall of the nasal cavity?
perpendicular plate of the palatine bone
what makes up the posterior quarter (1/4) of the hard palate?
horizontal plate of the palatine bone
cause of cleft palate
genes and environment (smoking, diabetes, medications)
surgical procedures of cleft palate (4)
-furlow palatoplasty
-pharyngeal flap
-pharyngeal wall augmentation
-sphincter pharyngoplasty
furlow palatoplasty
- double opposing z plasty
- lengthens the velar tissue so it can make contact with the posterior pharyngeal wall
pharyngeal flap
- for VP insufficiency
- midline
pharyngeal wall augmentation
-bulge in the pharyngeal wall
palatal lift
lifts up the palate cos it’s too weak
palatal obsturator
to fill that little gap
speech bulb
fills up nasopharyngeal space
Velopharyngeal Dysfunction (general term)
-velopharyngeal valve doesn’t close
Velopharyngeal Insufficiency
anatomical, abnormal structure aka too short
Velopharyngeal Incompetence
physiological, function! muscle too weak etc
Velopharyngeal mislearning
how theyre using is wrong
SLP role in cleft lip and palate
evolves as the patient grows
infancy - swallowing
childhood, etc
evaluate effectiveness of surgery
bones of the cranium (6)
frontal (unpaired), parietal (paired), occipital (unpaired), temporal (paired), ethmoid (unpaired) - core of skull, sphenoid (unpaired)
four sections of temporal bone
squamous, tympanic, mastoid, petrous
which cranial bone is the pterygoid plates located?
sphenoid bone
what houses the cochlea and semicircular canals, the inner ear
it’s embedded in the petrous portion of temporal bone
what are sinuses?
-air filled cavities
-lined with epithelial cells
sinuses function
-produce mucus, drain nasal passages
sinuses parts
-frontal sinus, sphenoid sinus, ethmoid sinus, maxillary sinus
dentition
8 incisors, 4 cuspids, 8 bicuspids (premolars), 12 molars including wisdom teeth
(20 desiduous teeth)
oral cavity boundaries
anterior: lips
posterior: faucial pillar (anterior and posterior)
buccal cavity
space between teeth and cheeks
nasal cavity
superior, middle, and inferior conchae
eustachian tube
connects the nasopharynx with middle ear
equalizes pressure
features of lips and nose
columella, philtrum, cupid’s bow
innervation of face muscle
CN VII facial nerve
elevates the upper lip
levator labii superioris, zygomatic minor, zygomatic major
corners of the lip
orbicularis oris
buccal cavity muscle
buccinator
muscles for smiling
risorius
bell’s palsy
CN VII