Table 1.
Mass, nPCSA, % nPCSA, and input forces representing the primary jaw adductors in models of Callithrix jacchus and Saguinus fuscicollis at a gape angle representing molar biting (15°). Methods of calculating nPCSA for the pterygoid muscles are described in the text.
| Mass | nPCSA | % nPCSA | Input force (N) | |
|---|---|---|---|---|
| C. jacchus (15°) | ||||
| Temporalis* | 1.53 | 1.6 | 48 | 68.27 |
| Masseter* | 1.1 | 1.31 | 39 | 55.47 |
| Medial pterygoid | 0.3 | – | 10 | 14.22 |
| Lateral pterygoid | 0.2 | – | 3 | 4.27 |
| Sum of input Force | 142.23 | |||
| S. fuscicollis (15°) | ||||
| Temporalis* | 1.79 | 2.72 | 49 | 69.69 |
| Masseter* | 1.29 | 2.19 | 39 | 55.47 |
| Medial pterygoid | 0.3 | – | 9 | 2.80 |
| Lateral pterygoid | 0.1 | – | 3 | 4.27 |
| Sum of input force | 142.23 | |||