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Fig. 4. Optical sections through pectoral fin muscle of an
-actin transgenic
zebrafish expressing GFP. Rostral is to the left in all images. Pectoral fin
muscle is in the middle of the images. (A) Planar section through the abductor
muscle. (B) Adductor muscle (right) and cross section although abductor muscle
(left, with arrow), (C) Cross sections through the abductor muscle (left with
arrow) and adductor muscle (right), (D) Orientation of the muscle sections A
through C of the entire pectoral fin, (E) abductor muscle, (F) abductor muscle
and fin membrane. Scale bars, 50 µm.