Exam 2: Respiration/Phonation
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Aerodynamic portion of theory
airstream from the lungs and Bernoulli’s effect occurs which is when there is a build up in sub glottal pressure which blows open the vocal folds to equalize pressure
myoelastic portion of theory
mechanical factors of the muscle when the vocal folds snap back into place because of elasticity. the cycle continues as pressure builds up, blows open the folds and returns to adducted position
breathing cycles A indicates:
someone is hyperventilating
breathing cycles D indicates
person is producing long speech utterance on one breath
breathing cycles E indicates
greatest amount of expiratory muscle contraction
where does the pulmonic airstream originate
lungs
cricothyroid muscle
tilt larynx and adduction
posterior cricoarytenoid muscle
abduction
transverse arytenoid muscle
adduction
thryoarytenoid muscle
adduction
temporal lobe
audition language formulation
frontal lobe
decision making motor commands
parietal love
sensory
occipital lobe
vision
brainstem
speech breathing
when diameter of vocal cords increase like what occurs during puberty, frequency of voice
decreases
although tension overrides this aspect, when vocal folds are lengthened the frequency
decreases
when vocal cords increase in tension like what happens when the larynx is moved a certain way, frequency of the voice
increases
females fundamental frequency approximates
200 hz
name of the space between vocal folds is
glottis
the larynx and articulators are capable of producing the following types of sounds
mixed simple periodic complex periodic complex aperiodic
describe functions of larynx
protection: prevent aspiration with laryngeal reflex respiration: vocal folds abduct and glottis is open for airstream phonation: larynx acts as valve, vfs abduct and adduct
in production, brooks area is responsible for
executing commands for motor areas for speech
which cranial nerve innervates laryngeal muscles
X