Making the world better, one answer at a time. Capillary: A tiny blood vessel where substances are exchanged between the blood and the body cells.he capillary is the only blood vessel where things can be  exchanged because it is so thin (one cell thick). Capillaries have  a single cell layer of squamous epithilium.
The day before the colonoscopy â Don't eat solid foods. Instead, consume only clear liquids like clear broth or bouillon, black coffee or tea, clear juice (apple, white grape), clear soft drinks or sports drinks, Jell-O, popsicles, etc. The day of the colonoscopy â As on the previous day, clear liquid foods only.
Up to 4 days before colonoscopy; What To Eat Before A Colonoscopy - Colonoscopy Diet: 1  One Day Before: 2  One day before the procedure - Diet Before Colonoscopy Bowel Preparation: 3  Tips For Smooth Colonoscopy Procedure: 4  The day of procedure: