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The angle of septomarginal trabecula branching from the crista supraventricularis in the respective age groups
| Angles of trabecula branching | Fetuses | Children | Adults | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No secondary trabeculae | Secondary trabeculae | No secondary trabeculae | Secondary trabeculae | No secondary trabeculae | Secondary trabeculae | |||||||
| 1 | 2 | 3 | 1 | 2 | 3 | 1 | 2 | 3 | ||||
| 0°-30° | 18 | - | - | - | 14 | 4 | - | - | 22 | 10 | - | - |
| 31°-60° | 15 | 12 | - | - | 13 | 11 | - | - | 14 | 9 | - | - |
| 61°-90° | 5 | 7 | 3 | - | 6 | 4 | 8 | - | 29 | 1 | 12 | 3 |
| 38 | 22 | 33 | 27 | 65 | 35 | |||||||
| 60 | 60 | 100 | ||||||||||
