Yolk syncytial layer cell nuclei exhibit convergence and extension behaviors during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Timelapse of yolk syncytial layer (YSL) nuclear movements during gastrulation from a dorsal-anterior view shows epiboly, early animal pole directed movements of I-YSL nuclei, and convergence and exten...

Elongation of the lateral trunk ectoderm closely matches that of the ventral body side, but shows very little convergence. This time-lapse movie shows the elongation of the lateral region of Platynere...

Elongation of the dorsal trunk ectoderm closely matches that of the ventral body side, but shows very little convergence. This time-lapse movie shows the elongation of the dorsal region of Platynereis...

Zebrafish Notogenesis and Early Neurulation. Mediolateral intercalation produces convergent-extension of the notochordal rudiment. Cells within the center of the notochord elongate and are incorporate...

Yolk syncytial layer nuclei undergo epiboly and converge dorsally during late gastrulation. Video made available by Mark Cooper through Zebrafish - The Living Laboratory.

Zebrafish embryo showing the alignment of cells involved in the formation of the neural tube, which will become the spinal cord and brain.

A colorized SEM image of a human proximal tubule, showing the tubular structure and projections extending over the tissue surface.

A 4D visualization of zebrafish somitogenesis and neural keel formation. The Quicktime movie shows progressively dorsal optical sections in a segmenting embryo. Note the midline alignment of neuroepit...

Dorsal cell movements during zebrafish gastrulation includes a combination of epiboly, involution, and convergence and extension along the embryonic axis. Note that videos CIL 11818, 11819, and 11820...