Isopotential Muscle

	Isopotential Muscle Isopotential muscle refers to muscle fibers which are fewer than two times the length constant In neurobiology, the length constant (''λ'') is a mathematical constant used to quantify the distance that a graded electric potential will travel along a neurite via passive electrical conduction. The greater the value of the length constant, t .... References * Muscular system {{muscle-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Muscle Fibers A muscle cell is also known as a myocyte when referring to either a cardiac muscle cell (cardiomyocyte), or a smooth muscle cell as these are both small cells. A skeletal muscle cell is long and threadlike with many nuclei and is called a muscle fiber. Muscle cells (including myocytes and muscle fibers) develop from embryonic precursor cells called myoblasts. Myoblasts fuse to form multinucleated skeletal muscle cells known as syncytia in a process known as myogenesis. Skeletal muscle cells and cardiac muscle cells both contain myofibrils and sarcomeres and form a striated muscle tissue. Cardiac muscle cells form the cardiac muscle in the walls of the heart chambers, and have a single central nucleus. Cardiac muscle cells are joined to neighboring cells by intercalated discs, and when joined in a visible unit they are described as a ''cardiac muscle fiber''. Smooth muscle cells control involuntary movements such as the peristalsis contractions in the esophagus and stomach. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Length Constant In neurobiology, the length constant (''λ'') is a mathematical constant used to quantify the distance that a graded electric potential will travel along a neurite via passive electrical conduction. The greater the value of the length constant, the farther the potential will travel. A large length constant can contribute to spatial summation—the electrical addition of one potential with potentials from adjacent areas of the cell. The length constant can be defined as: : \lambda = \sqrt where ''r''''m'' is the membrane resistance (the force that impedes the flow of electric current from the outside of the membrane to the inside, and vice versa), ''r''''i'' is the axial resistance (the force that impedes current flow through the axoplasm, parallel to the membrane), and ''r''''o'' is the extracellular resistance (the force that impedes current flow through the extracellular fluid, parallel to the membrane). In calculation, the effects of ''r''''o'' are negligible, so the equat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]