Fig. 4. (AC) Loglog plots of peak force per muscle cross-sectional
area during twitch (open circles) and tetanus stimulation (full circles)
versus cranial length. The muscle names are indicated above the
graphs. Data on m-pr-h force of the smallest two individuals are excluded from
the regression analysis. See Table
1 for regression statistics. Abbreviations: m-a-m, musculus
adductor mandibulae A2A3'; m-hyp, hypaxials; m-pr-h, protractor
hyoidei.