Chapter 6 Flashcards
Respiration
s the energy source
Vocal folds
are the source of sound for voiced phonemes
Vocal cavity:
: we change shape of the oral, pharyngeal and nasal cavities to shape/create the phonemes/sounds
Source-filter Theory Of Sound Production (Fant, 1961)
States that the vocal folds provide the sound “source” for voiced sounds
Oral/nasal/pharyngeal cavities provide the “filter” that shapes the source into the sounds of speech
Other sound sources may include the turbulence produced by obstructing the airstream (e.g., /t/)
Resonance
the modification of the basic sound source that occurs after the sound has been produced. As the sound pressure waves rise from the larynx, they “bounce” off of the walls of the passages that they traverse. Therefore, the pharynx (throat) and oral/nasal cavities create resonance
Articulation
Process of joining two elements together
Articulation for speech
Process of bringing two or more moveable speech structures together to form the sounds of speech
Articulation = final stage of speech sound production in which the phonemes are actually produced by engaging mobile and immobile vocal tract structures (i.e., articulators). They shape the product of the vocal folds into phonemes (speech sounds)
Mobile & immobile vocal tract structures that filter or create the sound source
Mobile
Tongue, velum, lips, mandible, cheeks, pharynx, fauces, and larynx
Immobile
Alveolar ridge, hard palate, teeth
Framework for the Articulators
Bones of the face
Mandible, maxillae, nasal bone, palatine bone, vomer, zygomatic bone, hyoid bone
Bones of the cranial skeleton
Ethmoid, sphenoid, frontal, parietal, temporal, occipital
Mandible
Unpaired bone Corpus, angle Ramus Condylar and coronoid processes Alveolar arch Houses teeth Provides points of attachment for tongue Begins as two bones, fused by one year
Maxillae
Paired bones making up upper jaw, incl. palate (roof of mouth) and parts of the nose
Processes
Frontal, zygomatic, alveolar, palatine
Involved in clefting of the lip and hard palate
Paired nasal bones are adjacent to frontal processes
Palatine bones & nasal conchae
Paired palatine bones help make up nasal cavity and contribute to palate
Inferior nasal conchae (inferior turbinates)
Small scroll-like bones on lateral surface of nasal cavity
Highly vascularized
Membrane helps to warm and humidify inspired air
Vomer
Inferior aspect of nasal septum
Septum = separation wall between the two nasal cavities
Septal cartilage makes up anterior nasal septum
Unpaired bone
Articulates with maxillae and palatine inferiorly (& sphenoid, ethmoid, bones)
Zygomatic bone
Paired lateral bones that make up cheekbones
Articulates with maxillae, frontal bone, temporal bone
Processes
Maxillary, temporal, frontal
Bones of Cranial Skeleton
Bones:
Ethmoid, sphenoid, frontal, parietal, temporal, occipital
Ethmoid Bone
Bone making up superior nasal septum & separates nasal and cranial cavities
Middle and superior conchae are lateral to its perpendicular plate
plates of frontal bone
Forms part of medial orbit
Forms superior part of nasal sinus
Sphenoid Bone
Bone has corpus + 3 processes & makes up antero-lateral skull
Butterfly shaped
Is the bulk of the floor of the cranial cavity
Corpus
Several cranial nerves pass via the bone
Frontal Bone
Bone (unpaired) makes up forehead and anterior skull as well as supraorbital region
Attaches to parietal bones via coronal suture
Zygomatic processes
Parietal Bones
Paired bones that attach at midline via sagittal suture
Attach in posterior via lamboidal suture to occipital bone & laterally via squamosal suture to temporal bones
Paired
Divided by sagittal suture
Occipital Bone
Bone with external occipital protuberance Landmarks: Cerebral and cerebellar fossa Foramen magnum Condyles
Unpaired
Posterior
Lambdoidal suture to parietal
Foramen magnum for spinal cord
Temporal Bones
Landmarks: External/internal auditory meatus Zygomatic process Mastoid process Styloid process Paired Bones with 4 portions
Components of teeth
Root, crown, neck, pulp, enamel, cementum
Upper and lower dental arches with 4 types of teeth
Incisors, cuspids, bicuspids, molars
Directions of teeth
Medial, distal, lingual, buccal
Development of teeth
Deciduous vs. permanent
•10 teeth in deciduous arch, 16 in permanent
–Dental eruption between 6-9 months
–Shedding begins at ~6 years until ~10
Permanent of eruption of teeth
With shedding onset, root and enamel are resorbed, allowing for easy detachment of deciduous tooth and later eruption of permanent