<prompt> All of the following statements about Paneth cells are true, exceptRich in Rough Endoplasmic RectuculumRich in ZincContain LysozymeFoamy appearance  <response>: Paneth cells, along with goblet cells, enterocytes, and enteroendocrine cells, represent the principal cell types of the epithelium of the small intestine. A few may also be found sporadically in the cecum and appendix. image ref - semantischolar.org 