Fig. 12. Extraocular tissue architecture, medial view. Serial sections of human orbit, stacked and reassembled by computer. Green, sclera; Red, muscle; Pink, smooth muscle; Blue, collagen; Orange, elastin. Note broad band of elastin and smooth muscle stretching from medial orbit to cross-over of the inferior oblique and the inferior rectus, lying within the region of Lockwood's ligament. Equatorially distributed smooth muscle probably is involved in stabilizing the pulleys. (Miller JM, Demer JL, Poukens V et al: Extraocular Tissue Architecture H7, privately published Quicktime VR scene. © 2002 Joel M. Miller.)