Cat tongue, cross section

  • David Linstead
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Attribution 4.0 International (CC BY 4.0)

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Cat tongue, cross section. David Linstead. Attribution 4.0 International (CC BY 4.0). Source: Wellcome Collection.

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Differential interference contrast (DIC) micrograph of a cross section of a cat tongue. This sample is from a vintage prepared slide from the period 1870 - 1905. Blood vessels were injected with dye (carmine; red) before fixing and sectioning the tissue in order to visualise the capillaries in the tissue. This was a newly developed technique at that time. Capillaries supplying the papillae (raised protrusions or bumps on the tongue) of the tongue and the structure of the underlying muscle can be seen.

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