Cells Covering

Parietal cells are a type of cells that are found in the lining of the heart. They are part of the endocardium, the inner lining of the heart.

Parietal cells play an important role in maintaining normal heart rhythm and cardiac contractility. They form a wall that separates the heart from the external environment and protects it from injury and damage. In addition, parietal cells secrete special proteins and molecules that regulate the functioning of the heart and maintain its functions.

The cells of the parietal layer, or parietal glandulocytes (English: Purkinje fibers), are cylindrical cells with a relatively large nucleus and the presence of an amorphous internal substance. Their total number is very small, they occupy no more than 20% of the total area of ​​the interstitium, but have high functional activity. Due to the rapid conduction of excitation, these cells regulate the heart rate and contraction of the heart muscle. Intermi-diardiopace is established by the rhythmicity of the isolated work of the RV, therefore different areas in the ventricular wall contract like a flywheel due to the impulse formed between the RV.

Parietal cells have the ability to accelerate the spread of excitation through all layers of the myocardium. During their formation, they, as a rule, undergo complete evolution and grow to the middle cells of the myocardial conduction system. The structural features of the pancreas include the following points. The membrane of these cells does not contain glia and myoglobin. Interstitial islets