ovary ovarian medulla http://purl.obolibrary.org/obo/NCIT_C33245 http://purl.obolibrary.org/obo/UBERON_0013192 http://purl.org/sig/ont/fma/fma18616 https://en.wikipedia.org/wiki/Medulla_of_ovary https://www.wikidata.org/wiki/Q3853846 A09.1.01.012 Highly vascular stroma found in the center of the ovary that forms from embryonic mesenchyme and contains blood vessels, lymphatic vessels, and nerves; this stroma forms the tissue of the hilum by which the ovarian ligament is attached, and through which the blood vessels enter; it does not contain any ovarian follicles. The central portion of the ovary, composed of loose connective tissue that contains blood vessels, lymph vessels and nerves. medulla of ovary medulla