The direction of the resorption of the maxillary ridge is upwards and lingually.

CTPA is the most sensitive diagnostic test for pulmonary embolism, as it directly visualizes the emboli in the pulmonary arteries.

Anti-Smith (anti-Sm) antibodies are highly specific for SLE and are found in about 20-30% of patients. While antinuclear antibodies and anti-double stranded DNA antibodies are also associated with SLE, they are less specific as they can also be present in other conditions.

The pigment associated with hemochromatosis is hemosiderin.

The immunoglobulin secreted in Bile is IgA