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SLPA Anatomy

Interior and Muscles of the Larynx

QuestionAnswer
What are the 2 pairs of laryngeal joints? 1. cricoarytenoid 2. cricothyroid
The __ joint is the saddle join that permits __ motion and a limited amount of __ action Cricoarytenoid; rocking motion; limited gliding action
What 2 things are located on the cricoarytenoid joint? 1. cricoid articular facet 2. artytenoid articular facet
The __ articular facet is located ___ on the sloping surface of the __ __ cricoid; laterally; cricoid lamina
The __ articular facet is located on the __ of the __ __ Artytenoid; undersurface; muscular process
During ___, the rocking motion of the arytenoid cartilage produces an upward and outward swinging motion of the vocal process Abduction
During abduction, rocking motion of the __ cartilage produces an __ and __ swinging motion of the __ __ arytenoid cartilage; upward and outward; vocal process
During __; arytenoid cartilage produces an inward and downward motion of the vocal process adduction
During adduction; arytenoid cartilage produces an __ and __ motion of the __ __ inward and downward; vocal process
the __ joint is a pivot joint cricothyroid
What is the primary action of the cricothyroid? Rotation
The rotational motion of the cricothyroid is executed by the __ cartilage cricoid
The ___ joint serves to increase the tension of the ___ ___ cricothyroid; vocal folds
What happens when the tension of the vocal folds are increased? The pitch increases
The __ __ lines the entire cavity of the larynx mucous membrane
Ventricular folds are also called what? False vocal folds
The ___ ___ have a soft and flaccid appearance and are incapable of becoming tense ventricular folds
The __ __ move with the arytenoid cartilages, but stand farther apart than the vocal folds ventricular folds
the __ __ do not vibrate during phonation ventricular folds
Although the __ __ do not vibrate during phonation, they may modify the tone produced by true vocal folds ventricular folds
The space between the ventricular folds is called the __ __ false glottis
The ___ region is bound above by the vocal folds and below by the inferior margins of the cricoid cartilage subglottal region
The subglottal region is bound above by the __ __ and below by the __ margins of the __ vocal folds; cricoid cartilage
The __ __ __ lie parallel too and just beneath the ventricular folds true vocal folds
the true vocal folds lie ___ to and just __ the ___ folds parallel; beneath; ventricular
Paired vocal folds take their __ from the __ __ near the __ and the __ __ origin; thyroid cartilage; angle; thyroid notch
Where do paired vocal folds come together? anterior commissure
The __ __ is the posterior attachment of the vocal folds on the anterolateral surface of the arytenoid cartilages posterior commissure
The posterior commissure is the posterior attachment of the __ __ on the __ surface of the ___ cartilages vocal folds; anterolateral; arytenoid
Bundle of __ __ makes up the vocal folds muscle tissue
___ portion of the thyroarytenoid that inserts along the vocal process thyrovacalis
The thyrovacalis is the portion of ___ that inserts along the __ thryoarytenoid; vocal process
___ is the portion of the thryarytenoid that inserts along the base of the arytenoid cartilage and the muscular process Thyromuscularis
The thyromuscularis inserts along the base of the ___ cartilage and the __ process arytenoid; muscular
The __ is the variable opening between the vocal folds glottis
The __ extends from anterior commissure to the vocal processes and base of the arytenoid cartilages glottis
What are the borders of the glottis? Membranous glottis and cartilaginous glottis
The membranous glottis is the __ portion of the glottis and the cartilaginous glottis is the __ portion anterior; posterior
The __ glottis extends from the anterior commissure to the vocal process membranous
The membranous glottis exteneds from the __ __ to the __ __ anterior commissure; vocal process
The __ glottis comprises 3/5 of the total length of the glottis membranous
The ___ glottis comprises 2/5 length of the glottis cartilaginous
The __ glottis is bound by the vocal processes and the medial surfaces of the arytenoid cartilages cartilaginous
Cartilaginous glottis is bound by the __ __ and the __ surfaces of the __ cartilages vocal processes; medial; arytenoid
During phonation, the ___ portion of the glottis is most active membranous
the true vocal folds lie ___ to and just __ the ___ folds parallel; beneath; ventricular
Paired vocal folds take their __ from the __ __ near the __ and the __ __ thyroid cartilage; angle; thyroid notch
Where do paired vocal folds come together? anterior commissure
The __ __ is the posterior attachment of the vocal folds on the anterolateral surface of the arytenoid cartilages posterior commissure
The posterior commissure is the posterior attachment of the __ __ on the __ surface of the ___ cartilages vocal folds; anterolateral; arytenoid
Bundle of __ __ makes up the vocal folds muscle tissue
___ portion of the thyroarytenoid that inserts along the vocal process thyrovacalis
The thyrovacalis is the portion of ___ that inserts along the __ thryoarytenoid; vocal process
___ is the portion of the thryarytenoid that inserts along the base of the arytenoid cartilage and the muscular process Thyromuscularis
The thyromuscularis inserts along the base of the ___ cartilage and the __ process arytenoid; muscular
The __ is the variable opening between the vocal folds glottis
The __ extends from anterior commissure to the vocal processes and base of the arytenoid cartilages glottis
The glottis extends from __ __ to the __ __ and base of the ___ cartilages anterior commissure, vocal processes, arytenoid
What are the borders of the glottis? Membranous glottis and cartilaginous glottis
The membranous glottis is the __ portion of the glottis and the cartilaginous glottis is the __ portion anterior; posterior
The __ glottis extends from the anterior commissure to the vocal process membranous
The membranous glottis exteneds from the __ __ to the __ __ anterior commissure; vocal process
The __ glottis comprises 3/5 of the total length of the glottis membranous
The ___ glottis comprises 2/5 length of the glottis cartilaginous
The membranous glottis is __mm in males and __mm in females 15; 12
The __ glottis is bound by the vocal processes and the medial surfaces of the arytenoid cartilages cartilaginous
Cartilaginous glottis is bound by the __ __ and the __ surfaces of the __ cartilages vocal processes; medial; arytenoid
During phonation, the ___ portion of the glottis is most active membranous
the true vocal folds lie ___ to and just __ the ___ folds parallel; beneath; ventricular
The __ glottis extends from the anterior commissure to the vocal process membranous
The membranous glottis exteneds from the __ __ to the __ __ anterior commissure; vocal process
What are the two groups of laryngeal muscles? Extrinsic and intrinsic
What is the function of extrinsic muscles? Support of the larynx and for fixing it in position
__ muscles have one attachment to structures outside of the larynx and one on an outside structure extrinsic
___ muscles are ___ and have one attachment on the hyoid bone supplemental; extrinsic
Supplemental muscles are extrinsic and have one attachment on the __ __ hyoid bone
Supplemental muscles are ___ or ___ elevators or depressors
What is the function of intrinsic muscles? responsible for the control of speech production
With ___ muscles, both attachments are confined to the larynx intrinsic
Extrinsic muscles deal more with __ motor skills, while intrinsic muscles deal more with __ motor skills gross; fine
Name 3 main extrinsic muscles (on powerpoint) Sternothyroid, thyrohyoid, inferior pharyngeal constrictor
Suprahyoids and infrahyoid muscles are ___ extrinsic
___ are extrinsic and elevate the hyoid bone when contracted suprahyoids
___ are extrinsic and are depressors infrahyoid
What are the 6 suprahyoid muscles? 1. digastric 2. stylohyoid 3. mylohyoid 4. geniohyoid 5. hyoglossus 6. genioglossus
____: (suprahyoid) inner edge of the anterior mandible digastric
___: (suprahyoid) temporal bone stylohyoid
____: (suprahyoid) muscular floor of the mouth mylohyoid
___: (suprahyoid)above mylohyoid geniohyoid
____: (suprahyoid) tongue hyoglossus and genioglossus
What are the 2 infrahyoid muscles? Sternohyoid and omohyoid
____ : (infrahyoid) sternum sternohyoid
____ : (infrahyoid) upper border of scapula omohyoid
___ muscles elevate or depress the larynx extrinsic laryngeal
___ muscles make fine adjustments in the vocal mechanism extrinsic laryngeal
What muscles are important in swallowing? extrinsic laryngeal
What are the 4 major types of extrinsic laryngeal muscles? 1. hyoid elevators 2. laryngeal elevators 3. hyoid depressors 4. laryngeal depressors
___ (extrinsic) is the long, slender muscle located in the anterior neck sternothyroid
the ___ (extrinsic) is almost completely covered by the sternohyoid and omohyoid muscles sternothyroid
____ originates from the posterior surface of the manubrium of the sternum and from the 1st costal cartilage sternothyroid
The sternothyroid originates from the ___ surface of the ___ of the sternum and from the ___ ___ cartilage posterior; manubrium; sternum; 1st costal
The ___ courses upward and laterally inserting on the oblique tendon of the thyroid cartilage sternothyroid
What is the principle action of the sternothyroid? to draw the thyroid cartilage downward
Where is the thyrohyoid muscle located? anterior neck
The thyrohyoid muscle either ___ hyoid or ___ thyroid depresses; elevates
The ___ muscle either depresses the hyoid or elevates thyroid thyrohyoid
The ___ muscle is covered by the sternohyoid and omohyoid muscles thyrohyoid
The ____ muscle originates from the oblique tendon of the thyroid laminae thyrohyoid
What is the principle function of the thyrohyoid muscle? contracts to decrease the distance between the thyroid cartilage and the hyoid bone
The inferior pharyngeal constrictor is comprised of muscle fibers from the lower portions of the __ and __ cartilages thyroid, cricoid
Fibers from the cricoid cartilage have a ___ course horizontal
Fibers from the thyroid cartilage have an __ ___ course oblique upward
What is the primary function of the inferior pharyngeal constrictor? To form the primary resonation cavity of the vocal membrane (also active during swallowing)
lateral cricoarytenoid origin lateral margin of cricoid C
lateral cricoarytenoid insertion muscular process of arytenoid
lateral cricoarytenoid action adduction of VF
lateral cricoarytenoid innvervation ILN
interarytenoid oblique origin the base of one arytenoid C
interarytenoid oblique insertion the apex of the second arytenoid
interarytenoid oblique action adduction of VF
interarytenoid oblique innervation inferior laryngeal nerve
interarytenoid transversus action adduction of VF
interarytenoid transversus innervation recurrent laryngeal N (X) (ILN)
posterior cricoarytenoid origin posterior surface of cricoid
posterior cricoarytenoid insertion the muscular process (mp) of arytenoid
posterior cricoarytenoid action abduction of VF
cricothyroid pars recta origin lateral surface of cricoid C
cricothyroid pars recta insertion inferior margin of thyroid C
cricothyroid pars recta action elongation and tension of VF
cricothyroid pars recta innervation external branch of superior laryngeal N
cricothyroid pars oblique origin lateral surface of cricoid C
ricothyroid pars oblique insertion anterior aspect of the inferior horn of thyroid C
ricothyroid pars oblique action elongation and tension of VF
stylohoid origin styloid process of temporal bone
stylohyoid insertion junction of the corpus and greater horn of HB
stylohyoid action hyoid elevator and backward
stylohyoid note suprahyoid muscles
anterior B of digastric origin mandibular symphysis
anterior B of digastric insertion intermediate tendon
anterior B of digastric action Elevate hyoid up & forward
anterior B of digastric note Suprahyoid Muscles- 1st of deglutition
posterior B of digastric origin Mastoid process
posterior B of digastric insertion intermediate tendon
posterior B of digastric action Elevates hyoid & backward
posterior B of digastric note Suprahyoid Muscles- 1st of deglutition
geniohyoid origin mandibular symphysis
geniohyoid insertion Corpus of hyoid
geniohyoid action hyoid elevator and forward
geniohyoid note Suprahyoid Muscles-
thyrohyoid origin Oblique line of thyroid lamina
thyrohyoid insertion Greater horn of hyoid
thyrohyoid action Lessen the distance b/t hyoid and thyroid (elevate thyroid/lowering hyoid)
thyrohyoid note infrahyoid muscles
sternohyoid origin Manubrium of sternum and clavicle
sternohyoid insertion Corpus of hyoid
sternohyoid action Depresses hyoid bone
sternohyoid note infrahyoid
sternothyroid origin manubrium of sternum & costal cartilage
sternothyroid insertion Oblique line of thyroid lamina
sternothyroid action Thyroid Depressor
sternothyroid note Extrinsic muscle of larynx- Infrahyoid Muscles
omohyoid orgin scapula
omohyoid insertion greater horn of HB
omohyoid action hyoid depressor
omohyoid note infrahyoid
Created by: jjohns53
 

 



Voices

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