The structure of the gut

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Across
  1. 6. the deepening inbetween two villi
  2. 8. special cells secreting mucus to protect the epithelial cells
  3. 10. Part of the mucosa which contains lymphocytes
  4. 11. substance produced by specific epithelial cells to protect them
  5. 14. one layer of cells building the first barrier
  6. 15. a smooth tissue membrane of mesothelium lining the contents and inner walls of body cavities
  7. 16. First layer of the intestinal barrier (view from the lumen)
Down
  1. 1. family of innate immune cells, derived from common lymphoid progenitors (CLPs) + contribute to immunity via the secretion of signalling molecules
  2. 2. Specific molecules which are produced and secreted by Paneth cells
  3. 3. lymphocytes found inside the epithelial layer of mammalian mucosa (e.g. in the gut, patrol the space between intestinal epithelial cells and the basement membrane
  4. 4. = aggregated lymphoid nodules which can be found only in small intestine
  5. 5. thin layer of muscle of the gastrointestinal tract right under the LP
  6. 7. Pyramidal structured surface which encoats the inside of the gut
  7. 8. epithelial invaginations into the underlying connective tissue
  8. 9. the cells of the epithelial layer are joind together by them
  9. 12. the outer layer of fibrous connective tissue surrounding an organ (here: the gut)
  10. 13. initiate mucosal immunity responses and allow transport of microbes/particles across the epithelial cell layer to the lamina propria