Appendix

Appendix is a small sac extending from the cecum right off the ileocecal valve.  One proposed function of the appendix is that it helps maintain a healthy gut microflora by replenishing the gut with pro-health strains that reside in the appendix.

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Human appendix, showing the suspensory mesentery on the upper left corner.  Follicles of lymphoid tissue can also be seen in the mucosa and submucosa.  (TM: 20x, picture taken with an Olympus S-Plan FL 2/0.08 on Sony A7ii)
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Highlighting the suspensory mesentery that supplies the appendix with blood vessels and nerves.  (TM: 100x, picture taken with a Nikon Planapo 10/0.4 on Sony A7ii)
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Highlighting the follicles of lymphoid tissue in the submucosa.  Each of this follicle contain a germinal center that is ready for clonal expansion of B-cell in response to infection.  (TM: 100x, picture taken with a Nikon Planapo 10/0.4 on Sony A7ii)

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