Adventitious membrane

a membrane connecting parts not usually connected, or of a different texture from the ordinary connection; as, the membrane of a cicatrix.

See also: Membrane

References in periodicals archive ?
The cause of obstruction in the obstructive ureterohydronephrosis is the growing of the connective tissue components of the wall with loss of differentiation between mucosal and muscular membrane and only adventitious membrane identifies structurally.
The adventitious membrane undergoes the least changes in all studied parts.