Stacks of endoplasmic reticulum (ER) membranes containing a high density of nuclear pores, thought to form from excess nuclear membrane components, that have been described in a number of different cells. Annulate lamellar membranes are continuous with and embedded within the ER. [ http://www.ncbi.nlm.nih.gov/pubmed/12631728 ]
This is just here as a test because I lose it