Table 2 Total number of ring types identified and the distribution based on their location on the trachea
From: Morphometric characterisation of human tracheas: focus on cartilaginous ring variation
Ring type | Absolute # of rings (% of the total # of rings) | % of specific ring type found | ||
|---|---|---|---|---|
Upper 1/3 of trachea | Middle 1/3 of trachea | Lower 1/3 of trachea | ||
A | 86 (58) | 34 | 49 | 17 |
B | 13 (9) | 31 | 31 | 38 |
C | 8 (5) | 38 | 12 | 50 |
D | 4 (3) | 25 | 50 | 25 |
E | 2 (1) | 50 | 50 | 0 |
F | 1 (1) | 0 | 100 | 0 |
G | 6 (4) | 83 | 17 | 0 |
H | 3 (2) | 100 | 0 | 0 |
I | 6 (4) | 0 | 0 | 100 |
J | 3 (2) | 67 | 33 | 0 |
K | 1 (1) | 0 | 0 | 100 |
L | 14 (10) | 50 | 36 | 14 |
Total | 147 (100) | |||