annulate lamellae
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http://purl.obolibrary.org/obo/GO_0005642
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 ]