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Definition
Structure lies at the top of the trachea anterior portion of the neck. It is a valving mechanism that opens and closes as well as houses the vocal folds. |
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Biological functions of the larynx include: |
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Definition
closure of the trachea so that food and other substances do not enter the lungs, production of the cough reflex to expel foreign substances that accidentally enter the trachea, and closure of the vocal folds to build subglottic pressure necessary for physical tasks. |
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Definition
Floats under the mandible or lower jaw. the muscles of the tongue and various muscles of the mandible, skull, and larynx are attached here. |
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Definition
A protective structure. A leaf-shaped piece of cartilage medial to the thyroid cartilage and hyoid bone. |
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Definition
Forms the anterior and lateral walls of the larynx and protects the larynx. |
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Definition
Some view as the uppermost tracheal ring and is linked with the thyroid cartilage and the paired arytenoid cartilages. It completely surrounds the trachea. |
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Definition
small, pyramid-shaped cartilages connected to the cricoid through the cricoarytenoid joint, which permits sliding and circular movements. |
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Definition
sit on the apex of the arytenoids and assist in reducing the laryngeal opening when a person is swallowing. |
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Definition
tiny cone-shaped cartilages which are located under the mucous membrane that covers the aryepiglottic folds. Serves to stiffen or tense the aryepiglottic folds. |
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Term
Intrinsic Laryngeal Muscles |
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Definition
Primarily responsible for controlling sound production. Muscles include: thyroarytenoid, lateral cricoarytenoid, transverse arytenoid, oblique arytenoid, cricothyroid, and posterior cricoarytenoid. |
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Definition
is attached to the thyroid and arytenoid cartilages. |
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Definition
generally referred to as the vocalis muscle or more commonly the vocal folds. |
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Definition
lateral cricoarytenoid, transverse arytenoid, and oblique arytenoid. |
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Term
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Definition
attached to the cricoid and thyroid cartilages. It lengthens and tenses the vocal folds. |
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Term
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Definition
is supported when the oblique and transverse arytenoid muscles contract and pull the arytenoids closer together. |
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Definition
accomplished when the posterior cricoarytenoid muscle contracts. |
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Definition
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Definition
adducts the vocal folds, increases medial compression. |
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Definition
pulls the apex of arytenoids in a medial direction. |
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Definition
It is not anatomical structure but a name of a space that is created when the vocal folds are abducted. |
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Extrinsic Laryngeal Muscles |
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Definition
Attached to the hyoid bone and lower or raise the position of the larynx within the neck. |
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Term
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Definition
Known as elevators that lie above the hyoid bone. Primary function is elevation of the larynx. |
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Term
Digastric, Geniohyoid, Mylohyoid, stylohyoid, hypglossus, and genioglossus. |
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Definition
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Definition
Known as depressors that lie below the hyoid bone. Primary function is depression of the larynx. |
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Term
Thyrohyoid, omohyoid, sternothyroid, and sternohyoid. |
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Definition
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Term
Epithelium, lamina propria, vocalis muscle are... |
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Definition
three layers of the vocal folds. |
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Term
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Definition
a ring of connective tissue and muscle extending from the tips of the arytenoids to the larynx. Separates the laryngeal vestibule from the pharynx and help preserve the airway. |
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Term
Ventricular, or false vocal folds |
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Definition
vibrate at very low fundamental frequencies and usually not during phonation in a normal speaker. Compress during such activities as coughing and lifting heavy items. |
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Term
Myoelastic-aerodynamic theory |
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Definition
vocal folds vibrate because of the forces and pressures of air and the elasticity of the vocal folds. |
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Term
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Definition
caused by the increased speed of air passing between the vocal folds, is the "sucking" motion of the vocal folds toward one another. |
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Term
Primary cortical areas involved in speech-motor control |
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Definition
primary motor cortex, broca's area, somatosensory cortex, and supplementary motor cortex. |
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