Electronic supplementary material, figure S1 from Feats of supercontractile strength: Functional convergence of supercontracting muscle properties among hyoid musculature in chameleons

Figure S1. Schematic diagrams of muscle mounting to experimental test apparatus. Diagramatic representations of mounting techniques for the (A) M. triceps scapularis, (B) M. hyoglossus, (C) M. sternohyoideus profundus, and (D) M. sternohyoideus superficialis. The skeletal attachment points were retained with the muscle for the m. triceps scapularis (bone fragments of the ulna and scapula) and mm. sternohyoideus superficialis (bone fragments of the basihyal and xiphisternum) et profundus (bone fragments of the ceratobranchial and xiphisternum). Silk suture was used to secure the distal skeletal attachment of the muscle to silver chain which connected the muscle to a dual mode servomotor. The opposite bony attachment was secured to the base of the experimental test apparatus via clamping of the bone (m. triceps scapularis and m. sternohyoideus profundus) or securing the attachment site to the test apparatus with silk suture. A segment of the m. hyoglossus was tied off and trimmed away from the full muscle’s length. One end was attached via silver chain to the servomotor, while the other was secured to the base of the test apparatus.