Figure 3. Modules of the head musculature identified using AnNA.

In yellow, the ocular/upper face complex; in light and dark blue, the orofacial complexes; and in grey, the 21 smaller blocks of inter-connected muscles. In the absence of bones, most muscles are totally disconnected from the three major muscle modules (in white). Strength of modularity (Q-value) 0.8323. See labels in Methods. This figure was drawn by Christopher Smith.