What is the function of myocardial cells?
Myocardial cells are specialized smooth muscle cells found in the myocardium, the muscular tissue of the heart. They possess features and properties similar to those of skeletal muscle cells.
A patient has an 80 percent blockage of his left anterior descending coronary artery Describe what occurs in terms of myocardial oxygen supply and demand if his sympathetic nervous system is stimulate?
The MUSCLE tissue that forms the walls of the HEART. Myocardial cells are unique in their structure, blending muscle and NERVE structures so they can both contract and conduct electrical impulses. Myocardial cells thus can contract independent of external stimulation. The myocardial fibers of the atria have a different configuration from those of the ventricles. TheCORONARY ARTERIES provide an extensive network to supply blood to the myocardium, which requires about 70 percent of the blood's…
There are two primary kinds of cells in the heart muscle These cells are the myocardial and electrical cells?
Myocardial cells lines the muscular walls of heart tissues (contractility and extensibility) Electrical cells is the conduction system of the heart. Can be conducted 3 ways: automaticity that generates action potential, excitability that responds to electrical impulses and conductivity transmit an electrical impulses from one cell to the next
What type of tissue are the walls of a heart made from explain how you could work this out from your knowledge of the action of the heart?
They aren't. They lie dormant next to the rest of the healthy heart tissue ... because it is riskier, medically, to remove these cells (through a highly complex operation) than to just leave them in place. The necrotic cells, though dead, still perform the function of structurally holding the myocardium in place. If they were removed, the heart muscle wall would be structurally weaker, as a whole.