Wednesday, September 10, 2014
The parenchymal cells are the body cells that make up the main functional tissue of an organ or system, constituting between 70 to 90% of its mass. And these functional tissue composed by parenchymal cells are called parenchyma, which is the essential fabric of the organ. These cells make possible the main functions of the organs and systems; for example, hepatocytes are the parenchymal cells of the liver, whose functions are the synthesis of proteins, tansformation of carbonhydrates, and protein storage, among others. The neurons are the parenchymal cells of the brain and nervous system, etc. When damaged by diseases or poisoning contamination, these cells does not multiply or reproduce as fast as the surrounding connective tissue cells; thus, in most cases, they are replaced by these support cells, provoking a tissue scar as the organ in question loses functionality.