Laryngeal Framework
This forms the border between the upper and lower respiratory tracts.
Larynx
What 2 processes assist in VF movement?
1. Vocal process
2. Muscular process
What are some potential effects of an intubation tube?
can dislocate arytenoid, sound breathy, sore throat, vocal fatigue
List extrinsic infrahyoid muscles and OIF
sternohyoid
omohyoid- anterior and posterior
sternothyroid
thyrohyoid
What is tidal volume?
Volume of air exchanged in one cycle of respiration (one inhalation and one exhalation)
What's the biological and nonbiological function of the larynx?
Biological- prevent foreign material from entering lungs, expel foreign substances by coughing or clearing throat
Nonbiological- voice production or phonation
Role of epiglottis
Protecting the airway from foreign substances
KNOW OCIF for respiratory and laryngeal muscles
Refer to flashcards and ppt.
Which intrinsic muscle tenses, relaxes, and adducts VF?
Thyroarytenoid
What is residual volume?
amount of air that remains in lungs after a maximum exhalation
What's 3 functions of the Hyoid bone?
Suspend larynx, point of attachment for some extrinsic muscles, supports root of tongue
Role of extrinsic muscles
Elevate or depress the larynx, moving the larynx as a whole
Thyrovocalis- tenses VF
Thyromuscularis- relaxes VF
both assist in adduction of VF
What is the clinical significance of vital capacity for SLP?
Let's us know the capacity of air that's available for speech production
includes: inspiratory and expiratory reserve volumes and tidal volume
Role of intrinsic muscles
act on VF by adducting, abducting, tensing, or relaxing
Role of cricothyroid
primary regulator of pitch (tense)
Explain total lung capacity
sum of all volumes except dead air space
Includes: inspiratory and expiratory reserve volumes and tidal and residual volumes
What's the primary function of the arytenoid cartilages?
movement of the VF for phonation/voicing/swallowing
list 4 syprahyoid muscles and OIF
Diagastric anterior and posterior bellies
stylohyoid
mylohyoid
geniohyoid
Which intrinsic muscle is the only abductor of VF?
Posterior cricoarytenoid