A. Multiple myeloma is a malignant, clonal disorder of plasma cells that originates in the bone marrow. Itâs a relatively common disorder, accounting for 1% of all malignancies and 10% of all hematologic malignancies in adults.
torsion, n 1. , motion or state of torque in which one end of an anatomical component is twisted about its longitudinal axis as the opposite end is either immobile or moves in the opposite direction.
A torus is a surface formed by revolving a circle about a line. Often, tori (the plural of torus) are doughnut shaped, as in the main image here. It is formed by revolving a circle about the z-axis. It can also be described as a ring-shaped surface with a hole. torus with one hole is simply referred to as the torus. A torus with two holes is called the 2-torus or the double torus, one with three holes is the 3-torus or triple torus. A torus with holes is the-torus. Mathematically, we can describe tori using several different equations.