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| | ==Larynx== | | ==Larynx== |
| − | The larynx is on the floor of the oropharynx supported by '''Cricoid''' and paried '''Arytenoid''' Cartilages which are different in structure to those in mammals. | + | *The larynx is on the floor of the oropharynx supported by '''Cricoid''' and paried '''Arytenoid''' Cartilages which are different in structure to those in mammals. |
| − | There is no Epiglottis. | + | *There is no Epiglottis. |
| | + | *There are no vocal folds - birds vocalise using a [[Syrinx - Anatomy & Physiology|syrinx]]. |
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| | + | ==Trachea== |
| | + | *The avian trachea is composed of tightly stacked cartilages which are shaped similarly to signet rings. These are complete with no dorsal space as in the mammalian [[Trachea - Anatomy & Physiology|trachea]]. They overlap considerably. |
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| − | ==Trachea
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| − | Birds vocalise using a [[Syrinx - Anatomy & Physiology|syrinx]].
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| | ==Air Sacs== | | ==Air Sacs== |