Tongue papillae capillaries,SEM

Bildnummer 11872364
Tongue papillae capillaries,SEM
Tongue papillae capillaries. Coloured scanning electron micrograph (SEM) of a resin cast of capillaries in the papillae of the tongue. Capillaries are the smallest blood vessels. Each upwards projection shows where a capillary extends into a papilla. The papillae project from the tongue's upper surface,giving it its rough texture. The most numerous tongue papillae are the filiform papillae,which do not contain taste buds. It is in the capillaries that nutrients and gases are exchanged with the tongue tissue through the permeable capillary walls. The cast was made by injecting resin into the blood vessels. The surrounding tissues were then chemically digested
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Nishinaga, Susumu
Bildgröße: 3858 px × 2894 px
Modell-Rechte: nicht erforderlich
Eigentums-Rechte: nicht erforderlich
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