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.
Filamentous actin (F-actin) is the major protein of muscle thin filaments, and actin microfilaments are the main component of the eukaryotic cytoskeleton.lthough tropomyosin consists of seven pseudo-repeating units, applying the helical symmetry of F-actin for the reconstruction of the F-actinâtropomyosin complex results in a reduced resolution of tropomyosin and the overlap region of the N and C termini is not visible in the map (see Methods).