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ANATOMICAL DEMONSTRATION OF GAMMA MOTONEURONS IN THE CAT'S SPINAL CORD.

R. Nyberg-Hansen
Published 1965 · Medicine

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Abstract The modified Gudden method of Brodal was used in an attempt to localize anatomically the γ-motoneurons of the spinal gray matter. In thirty kittens, aged 3–12 days, various limb nerves were sectioned. The kittens were killed 2–10 days after operation and representative segments of the cord were fixed in alcohol, embedded in paraffin and subsequently cut in serial transverse sections and stained with thionine. Typically, small nerve cells with retrograde changes were found intermingled with similarly affected large α-motoneurons in Rexed's lamina IX. Since the γ-fibers of peripheral nerves are thin (
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