Table 2 Measurements of the cricoid cartilage.
From: Changes of laryngeal parameters during intrauterine life
Age (weeks) | Height of ring of cricoid cartilage | Height of lamina of cricoid cartilage | Frontal diameter of interior margin of cricoid cartilage | Sagittal diameter of interior margin of cricoid cartilage | ||||
|---|---|---|---|---|---|---|---|---|
| Â | Male | Female | Male | Female | Male | Female | Male | Female |
13 | 1.9 | 2.0 | 2.9 | 3.0 | 4.3 | 4.4 | 3.8 | 3.6 |
14 | 2.0 | 2.1 | 3.0 | 3.1 | 4.4 | 4.5 | 3.8 | 3.7 |
15 | 2.1 | 2.3 | 3.1 | 3.3 | 4.5 | 4.5 | 3.8 | 3.8 |
16 | 2.3 | 2.3 | 3.3 | 3.4 | 4.7 | 4.7 | 4.0 | 3.9 |
17 | 2.5 | 2.6 | 3.5 | 3.6 | 4.7 | 4.9 | 4.0 | 3.9 |
18 | 2.7 | 2.7 | 3.6 | 3.7 | 4.9 | 4.8 | 4.0 | 4.0 |
19 | 2.8 | 2.9 | 3.8 | 3.9 | 5.0 | 5.0 | 4.8 | 4.7 |
20 | 2.9 | 3.0 | 3.9 | 4.0 | 5.3 | 5.1 | 4.9 | 4.8 |
21 | 3.4 | 3.5 | 4.4 | 4.5 | 5.8 | 5.9 | 5.4 | 5.1 |
22 | 3.9 | 3.6 | 4.9 | 4.6 | 6.1 | 6.1 | 5.9 | 5.2 |
23 | 3.9 | 3.8 | 4.9 | 4.9 | 6.2 | 6.2 | 5.9 | 5.5 |
24 | 4.1 | 4.2 | 5.1 | 4.8 | 6.6 | 6.2 | 6.1 | 6.1 |
25 | 4.2 | 4.1 | 5.2 | 5.1 | 6.7 | 6.3 | 6.0 | 6.1 |
26 | 4.2 | 4.2 | 5.3 | 5.2 | 6.8 | 6.4 | 6.1 | 6.1 |
27 | 4.3 | 4.3 | 5.3 | 5.2 | 6.9 | 6.4 | 6.2 | 6.2 |