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Table 3 Gross and microscopic dimensions (mean and standard deviation (SD) of the heart of European brown hares (N = 42).

From: Preliminary reference values for electrocardiography, echocardiography and myocardial morphometry in the European brown hare (Lepus europaeus)

Parameter Mean value and SD
Length of the heart (mm) 53.33 ± 9.0
Width of the heart (mm) 39.00 ± 2.82
Height of the right atrium (mm) 15.3 ± 2.73
Width of the right atrium (mm) 14.4 ± 1.37
Ring of tricuspid valve (mm) 16.5 ± 4.7 × 13.16 ± 4.62
Height of the right ventricle (mm) 27.83 ± 3.18
Width of the right ventricle (mm) 27.66 ± 4.84
Myocardial thickness of the right ventricle free wall (mm) 4.66 ± 0.5
Pulmonary artery (mm) 6.16 ± 1.1
Height of the left atrium (mm) 11.16 ± 7.5
Width of the left atrium (mm) 12.3 ± 3.0
Ring of mitral valve (mm) 9.83 ± 3.18 × 11.05 ± 1.55
Height of the left ventricle (mm) 31.83 ± 4.91
Width of the left ventricle (mm) 11.83 ± 1.16
Myocardial thickness of left ventricular free wall (mm) 8.66 ± 1.5
Myocardial thickness of the interventricular septum (mm) 8.16 ± 1.3
Aorta diameter (mm) 6.83 ± 1.47
Number of fibres in the assayed field amounted (mm) 40.52 ± 7.26
Diameter of cardiomyocytes in the ventricle (μm) 20.45 ± 5.06
Length of the cell nucleus (μm) 15.95 ± 2.91
Diameter of the cell nucleus (μm) 4.46 ± 0.63