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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: Hear Res. 2014 Oct 29;318:37–44. doi: 10.1016/j.heares.2014.10.010

Table 4. Morphological Values Comparing Human and Turtle Utricle Properties.

Although human utricles have much larger surface areas, turtle and human utricles share similar mean otoconial layer and shear layer thicknesses.

Surface
Area		 Number
of
Hair Cells		 Hair Cells
Per unit
area
mm2 ~No./mm2
Human 4.30 31,100 7,200
Turtle 0.815 8,670 10,600
Mouse 0.185 3,013 19,529