ST ClosetoTA Deeper zone AroundTR Outerdiameter 337.1 ± 77.3 462.8 ± 151.3 295.5 ± 54.1 Inner diameter 148.9 ± 46.4 181.9 ± 47.7 126.5 ± 16.1 Epithelialheight 188.2 ± 92.2 239.7 ± 107.8 164.4 ± 57

Table 1: Measurements of kangaroo seminiferous tubules at three different regions inside the testis, ST- seminiferous tubules, TA-Tunica albuginea, TR-tubuli recti. All measurements are average of 10 readings in micrometers.