title: Evidence of the origin of the gelatinous masses in the oviducts of mares.
abstract: The gelatinous masses known to occur in the mare oviduct were examined by light and scanning electron microscopy. Many (44%) of the masses which occurred in 16 of the 24 oviducts studied were connected with the mucosa of the ampulla near the ampullary-isthmic junction. The masses consisted of lobules of fine fibres probably derived from the fibrous connective tissue of the lamina propria in the oviductal mucosa.
mesh_terms: D000818:Animals; D005187:Fallopian Tubes / Q000033:anatomy & histology* / Q000648:ultrastructure; D005260:Female; D006736:Horses / Q000033:anatomy & histology*