VOICE Flashcards
(199 cards)
voice
sound produced by the larynx & modified by the vocal tract
phonation
expiration of air through vibrating vocal folds
what is a voice disorder
abnormal voice quality resulting from anatomic, physiologic, or psychogenic causes
voice that draws attention to itself/doesn’t align w/ one’s gender identity/age
dysphonia
abnormal voice or voice problem
sometimes colloquially described as hoarseness
aphonia
no voice
voice disorders incidence
~30% of people will experience at some point in their lives
voice disorders prevalence
8% of adults currently report voice difficulties
only about 10% of them will seek treatment
voice disorders prevalence in children
1.4-6%
risk factors for voice disorders
longer NICU stays
females (adults)
males (kids)
aging
alc & smoking
reflux
dehydration
phonotrauma
prolonged intubation
high vocal demands
illness (upper respiratory infection)
surgery (to head or neck)
trauma to head or neck
neurological conditions
populations at risk
teachers
singers
atorneys
telemarketers
service & industry workers
manufacturing workers
voice disorders consequences
missed days at work / school
lower productivity at work / participation in school
anxiety & depression
functions of the larynx
airway protection
allows us to breathe
swallowing assistance
phonation
thoracic function
swallowing assistance
laryngeal movement upward & forward propels food back into esophagus
pulls upper esophagus open
respiratory valve
oxygen in, carbon dioxide out
airway protection
adduction of vocal folds & ventricular folds
& closure of epiglottis against arytenoids & aryepiglottic folds
during swallong
coughing, throat clearing
abdominal (thoracic) fixation
adduction of vocal folds effectively fixes air in abdomen
gives firm foundation to push/pull
communicative functions of the larynx
carry linguistic info & affective info about the speaker
suprasegmental phonation
prosody:
stress, intonation, rhythm
Is the hyoid bone part of the larynx
considered part of laryngeal framework but not technically part of larynx
what is the hyoid bone important for
suspension point for larynx
important site for the muscular attachments of the larynx via the suprahyoid & infrahyoid muscles
cricothyroid joints
will stretch or relax the vocal folds when acted upon by intrinsic laryngeal muscles
cricoarytenoid joints
rock of arytenoids (vocal processes move down & inward or up & outward)
sliding of arytenoids (anterio-posterior movement)
thyroid connection points
cricoid
vocal folds
thyroid relationship to vocal folds
attaches to front of vocal folds