Signs and symptoms of an effusion vary depending on the underlying disease, but dyspnea, cough, and pleuritic chest pain are common. Chest examination of a patient with pleural effusion is notable for dullness to percussion, decreased or absent tactile fremitus, decreased breath sounds, and no voice transmission.
Medical Definition of velamentous insertion. : attachment of the umbilical cord to the chorion beyond the margin of the placenta.
insertion. 1. the act of implanting, or condition of being implanted. 2. the site of attachment, as of a muscle to the bone that it moves. 3. in genetics, a rare nonreciprocal type of translocation in which a segment is removed from one chromosome and then inserted into a broken region of a nonhomologous chromosome.. the act of implanting, or condition of being implanted. 2. the site of attachment, as of a muscle to the bone that it moves. insertion sequence (IS). see transposable genetic elements. velamentous insertion. attachment to a membrane, such as the umbilical cord to the fetal membranes.