Principal Organs of the Respiratory System- The Larynx (voice box)
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9 terms
Terms | Definitions |
|---|---|
 Functions of the Larynx | -Keeps food and drink out of the airway -Sound production -Acts as a sphincter during abdominal straining (ex. During defecation and heavy lifting) |
| What are the anatomical features of the larynx? | The nine c-rings, muscular walls, glottis, epiglottis, false vocal cords, and true vocal cords. |
| Nine c-rings | hyaline cartilage that form the framework of the larynx |
| Muscular Walls | aid in voice production and the swallowing reflex |
| Glottis | the superior opening of the larynx |
| Epiglottis | prevents food and drink from entering airway when swallowing |
| False Vocal Cords | aid in closing the glottis when swallowing |
| True Vocal Cords | produce sound when air passes between them |
| Note: | The shorter and thinner these membranes are, the faster air moves over them - produces high pitched sounds while the longer and thicker these membranes are, the slower air moves over them - produces low pitched sounds |
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