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Related Flashcards
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Cards In This Set
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What are the requirements for sound?
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1) Source of Energy (Respiratory System)2) generate sound, something that vibrates (vocal folds)
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What are the vegetative functions of the larynx?
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-part of the airway-helps protect airway-exchange of gasses (oxygen and CO2)
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Where is the larynx located?
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-superior to top tracheal ring-attached to trachea via cricotracheal membrane-anterior to esophagus
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What is cartilage?
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-nonvascular connective tissue-more flexible than bone-calcifies (becomes bone-like. less flexible with age)-provides similar function as bone
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What is the hyoid bone attached to?
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-superior attach to cartilages of larynx-has about 30 muscular attachments
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Greater Cornu (Horns)
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-landmark of the hyoid bone-located on posterior end of horseshoe-attached to thyroid cartilage
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Lesser Cornu (Horns)
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 -part of the hyoid bone-points of attachment for muscles |
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What is the cartilaginous framework for the larynx composed of?
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-1 thyroid cartilage-1 cricoid cartilage-2 arytenoids-1 epiglottis-2 corniculates-2 cuneiforms
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What is the thyroid cartilage of the larynx?
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-largest of laryngeal cartilages-forms anterior/lateral walls of larynx-posterior opening (like hyoid bone)-2 large plates that come together to form an angle called the lamina (make up the thyroid notch-"Adam's Apple")
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Oblique line of Thyroid Cartilage
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-landmark that is on each of the thyroid lamina-raised surface, point of attachment for muscles
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Superior horns/cornu of thyroid cartilage
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-articulate with the greater horns of hyoid bone-thyroid ligaments that attach to where superior and greater horns attach
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Inferior horns/cornu of thyroid cartilage
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-articulate with the cricoid cartilage
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What is the cricoid cartilage (1) of the larynx?
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-forms base larynx (most inferior part of larynx)-sits on top of trachea-shaped like signet ring-criocid arch forms anterior/lateral surfaces
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Arytenoid Cartilages (2) of the larynx
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-triangular base, with the apex being at the top-vocal process: forward most (anterior) point of arytenoid cartilage. Vocal ligaments attach to this-muscular process: lateral point, muscular attachment (these muscles then help move the arytenoids)
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Cricoarytenoid Joint
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-arytenoids move on cricoid-glide toward midline and back toward lateral edge-movements help to control positioning and tension of the vocal folds
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