Meromyosin
In Human anatomy, Myosin, of which meromyosin is a part of, along with actin constitute the basic functional unit of a muscle fibre, called Sarcomere. A better understanding of this subject can be reached once Muscle contraction is understood.
In biochemistry, meromyosin (mero meaning "part of") are subunits of the actin-associated motor protein, myosin, formed by trypsin digestion (proteolysis). Following digestion, two types of meromyosin are formed: heavy meromyosin (HMM) and light meromyosin (LMM).