Copper is used as medicine. Copper is used for treating copper deficiency and the anemia it may cause. Having too little copper (copper deficiency) is rare. It sometimes occurs in people who get too much zinc from diet or supplements, have intestinal bypass surgery, or are fed by feeding tubes.
A goblet cell is a glandular, modified simple columnar epithelial cell whose function is to secrete gel-forming mucins, the major components of mucus.
Interspersed between the epithelial cells are goblet cells that secrete mucus, whose function is to protect and lubricate the lining of the intestine. One of several goblet cells visible in this picture is labeled. Goblet cells look like a drinking goblet, with the pedestal or base toward the basal side.