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General pattern and morphological specializations of the avian cochlea.
TLDR
The differentiation of the evolutionarily-new short-hair-cell type is apparently essential in the high-frequency area of the papilla, and this probably functionally supportive type has lost its afferent innervation; its function must therefore be within the papillas itself.
Cochlear and lagenar ganglia of the chicken
TLDR
No distinct populations of cell bodies within the statoacoustical ganglion were definable, and cochlear and lagenar components had a high degree of homogeneity, especially in fiber size.
Hearing Organ Evolution and Specialization: Archosaurs
TLDR
The available data on inner-ear structure and function from different archosaur species is combined and reviewed, in an attempt to identify the putative primitive condition and subsequent specializations that occurred during evolution.
Surface morphology of basilar papilla of the tufted duck Aythya fuligula, and domestic chicken Gallus gallus domesticus
TLDR
It is clear that features considered to be evolutionarily advanced were acquired independently of one another during evolution and that each bird species can show a mosaic of primitive and advanced features.
Morphological gradients in the starling basilar papilla
TLDR
The starling cochlea was studied with TEM at four locations along the basilar papilla to investigate gradients in morphological features over the papilla's length and width, suggesting a micromechanical function for these cells.
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