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Cat small intestine, light micrograph

Cat small intestine, light micrograph

C020/9043

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Credit

DR KEITH WHEELER / SCIENCE PHOTO LIBRARY DR KEITH WHEELER / SCIENCE PHOTO LIBRARY

Caption

Cat small intestine. Light micrograph of a section through the jejunum, the middle section of the small intestine, of a cat (Felis domestica). The lumen (white) is at top. It is lined by villi (finger-like projections) that greatly increase the surface area for digestion of food. Surrounding the villi is the submucosa (red). It contains Brunner's glands, which secrete an alkaline mucous that neutralises acid and lubricates the intestine, and Peyer's patches, regions of lymphoid tissue that protect against infection. Surrounding the submucosa are two layers of smooth muscle (orange) that contract and relax to push food along the intestine. Magnification: x5 when printed at 10 centimetres wide.

Release details

Model release not required. Property release not required.

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