Heart: Cell Types Composing the Tissue

The heart is a complex structure composed of trillions of cells. The heart has two main components, one being the tissue constituting the bulk of the organ, and the other being the vessels emerging from or coming into the heart.

Tissue Structure

The heart structure is primarily made up of interlaced cells, which are surrounded by connective tissue. The connective tissue supports and nourishes each cell to maintain its survival. The tissue is quite similar to skeletal muscle tissue, with the main difference being the branching and size of the cells. Heart cells have a single nucleus and exhibit branching and visible striations. They are thicker than smooth muscle but thinner than skeletal muscle cells. Heart cells are divided into two types:

  • Such cells as cardiomyocyte, pacemaker cells, ...
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