medullary cell References medullary cell anatomy Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: integument/ HairThe medullary cells tend to be grouped along the central axis of the hair as a core, continuous or interrupted, of single, double, or multiple columns. Read MoreThe medullary cells tend to be grouped along the central axis of the hair as a core, continuous or interrupted, of single, double, or multiple columns. Read More