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Fig. 4 | Frontiers in Zoology

Fig. 4

From: Vocal tract anatomy of king penguins: morphological traits of two-voiced sound production

Fig. 4

Syrinx location in situ and connected structures of a male king penguin. a: Craniodorsal view in situ: the sternum is lifted upwards. The right tympaniform membrane is covered by the right lateral side of the right bronchus. Note that the heart has been removed to allow better visibility of the bronchi. b: Ventral view of the syrinx ex vivo. ST = Sternotracheal muscles, TL = Tracheolateral muscles, IF = Interbronchial Foramen. Numbers indicate tracheal rings

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