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| | [[Image:Syrinx Anatomy.jpg|thumb|right|150px|Anatomy of the Syrinx - Copyright RVC]] | | [[Image:Syrinx Anatomy.jpg|thumb|right|150px|Anatomy of the Syrinx - Copyright RVC]] |
| − | ==Structure and Function== | + | ==Structure== |
| | | | |
| | *Specialisation of the trachea bifurcation | | *Specialisation of the trachea bifurcation |
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| | *Composed of ossified cartilages, vibrating membranes and muscles | | *Composed of ossified cartilages, vibrating membranes and muscles |
| | + | |
| | + | ==Function== |
| | | | |
| | *Lateral and medial walls of the primary bronchi are membranous and flutter which produces sound | | *Lateral and medial walls of the primary bronchi are membranous and flutter which produces sound |
| − | **Sound is produced on expiration
| + | |
| − | **Increased pressure in the clavicular air sac causes the tympanic membrane of the syrinx to be forced into the lumen and vibrate
| + | *Sound is produced on expiration |
| − | **Tension of the membranes is controlled by the tracheolateral muscles
| + | |
| | + | *Increased pressure in the clavicular air sac causes the tympanic membrane of the syrinx to be forced into the lumen and vibrate |
| | + | |
| | + | *Tension of the membranes is controlled by the tracheolateral muscles |
| | + | |
| | + | *Each half of the syrinx can function independently allowing 2 different notes to be produced at the same time |
| | | | |
| | ==Vasculature== | | ==Vasculature== |
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| | *Songbirds have a complex set of syringeal muscles | | *Songbirds have a complex set of syringeal muscles |
| | + | |
| | + | *Parrots have a thick [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] which allows them to make sounds similar to humans |
| | + | **Sound travels from the syrinx and is modified in the throat, [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]] and mouth |
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| | ==Links== | | ==Links== |