TableĀ 1.

Values used to calculate the PCSA and maximum force of the jaw closer muscles.

musclemass (g)fibre length (cm)aPCSA (cm2)max. force (N)
superficial masseter2.00.82.460.9
posterior deep masseter0.3b0.70.410.3
ant. zygo.mandibularis0.5b0.80.615.0
post. zygo.mandibularis0.30.70.410.5
temporalis1.10.8c1.537.1
medial pterygoid1.50.62.562.3
lateral pterygoid0.30.30.49.8
  • aTaken from Weijs & Dantuma [32].

  • bEstimated using muscle volume and specific density.

  • cFibre length of the deep temporalis.