File:Dynamic-3D-Cell-Rearrangements-Guided-by-a-Fibronectin-Matrix-Underlie-Somitogenesis-pone.0007429.s004.ogv

English: Organization of the FN matrix in the nascent somite. The video is an animation showing all sides of the 3D reconstruction of fibronectin (green) matrix organized around somite sI (blue), s0 (dark brown) and s-I (light brown). Rostral is to the right. The “outward cables” of FN are clearly seen radiating from the surface of the somites in formation. In the middle of the Video only s0 is depicted, to show how the fibronectin matrix is organized on all sides; the medial wall is less well covered with fibronectin than the dorsal and ventral walls. The caudal and cranial walls of s0 are not yet covered with FN. In the last segment of the video, the surface of the PSM and sI somite are removed to show only the FN, and the “inward cables” penetrating the PSM, especially in the prospective cleft. For more details refer to Figure 1.