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32 Cards in this Set

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How do humans produce sound?

Use of organs that do not have primary biological function of speech production. 1. force to set object into vibration. 2. object elastic enough to vibrate 3. medium that is able to propagate a sound wave.

Production of sound: force

provided by respiration

Production of sound: vibrating obj

"flow of air through the glottis, complemented by the layered structure of the vocal folds, wich produce a mucosal wave. "

Biologic function of larynx

protect the lungs

biologic function of respiration

gas exchange oxygen to co2

Larynx and respiration

"superior continuation of respiratiory passage, sits on top of trachea, cartilaginous (one bone) system linked by membranes"

rod shaped elastic cartilage found in posterior aryepiglottic folds to support that membrane. Highly variable insize and number among individuals

Eppiglottis

"leaf like structure bound by ligaments to thebase of the tongue, walls or pharynx and thyroid cartilage"

Epiglottis

closes off the laryngeal airway and deflects the bolus of food posteriorly into the esophagus during swallowing. Once it was related to breathing by acting to seal the airway and prevent the intake of substance

Laryngeal membranes

"these are extrinsic memranes and ligaments that connect the laryngeal cartilages, hyoid bone and trachea. "

Thyrohyoid membrane

Thyrohyoid membrane connects the thyroid cartilage to the hyoid bone

conus elasticus membrane

anteriorly connects the cricoid cartilage to the thyroid cartilage

Sternocleidomastoid

"considered a laryngeal muscle; supports larynx and entire neck region, part of respiration"