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Movie 9.
Time lapse light sheet movie of a Wnt5a-/-; Wnt1:Cre;mTmG embryo at E10.5. The field of view is within the apical region of supraorbital mesenchyme near the adjacent lateral ectoderm on the left. Cell membranes are sparsely labelled in green due to mosaicism of the Cre allowing for visualization of filopodia. Filopodial activity is present but not oriented apically or basally and the cell body (dark) moves little in response to the protrusions.