A cardiac muscle cell or myocardiocyte (also known as cardiomyocyte or cardiac myocyte) is the myocyte

Myocyte

A myocyte is the type of cell found in muscles. They arise from myoblasts.Each myocyte contains myofibrils, which are long, long chains of sarcomeres, the contractile units of the cell....

 specific to the myocardium (the heart muscle). Each myocardial cell contains myofibrils, which are long chains of sarcomeres, the contractile units of the cell. Myocardiocytes show similar patterns to skeletal muscle cells, but unlike multinucleated skeletal cells, myocardiocytes contain only one or two nuclei.

Myocardiocytes can contain vimentin

Vimentin

Vimentin is a type III intermediate filament protein that is expressed in mesenchymal cells. IF proteins are found in all metazoan cells as well as bacteria. IF, along with tubulin-based microtubules and actin-based microfilaments, comprise the cytoskeleton...

 and desmin

Desmin

Desmin is a protein that in humans is encoded by the DES gene.Desmin is a type III intermediate filament found near the Z line in sarcomeres. It was first described in 1976, first purified in 1977, the gene was cloned in 1989, and the first knock-out mouse was created in 1996. Desmin is only...

.