Examples of Purkinje fibers in the following topics:
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- If the AV node also fails, Purkinje fibers are capable of acting as the pacemaker.
- The Purkinje fibers are located in the inner ventricular walls of the heart.
- Purkinje fibers allow the heart's conduction system to create synchronized contractions of its ventricles, and are therefore essential for maintaining a consistent heart rhythm.
- During the ventricular contraction portion of the cardiac cycle, the Purkinje fibers carry the contraction impulse from both the left and right bundle branch to the myocardium of the ventricles.
- Purkinje fibers also have the ability of automatically firing at a rate of 15-40 beats per minute if left to their own devices.
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- The overall diameter of the fiber is about 125 μm and that of the core is just about 50 μm.
- Optical fibers are commonly used in telecommunications, because information can be transported over long distances, with minimal loss of data.
- The field of applied science and engineering concerned with the design and application of optical fibers are called fiber optics.
- Fibers in bundles are clad by a material that has a lower index of refraction than the core to ensure total internal reflection, even when fibers are in contact with one another.
- This shows a single fiber with its cladding.
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- The effect can be seen in the drawing-up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper, in some non-porous materials such as liquified carbon fiber, and in a cell.
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- It is used in many areas of science, such as astronomy, engineering, oceanography, physics, and fiber optics.
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- Refraction is responsible for a tremendous range of optical phenomena, from the action of lenses to voice transmission through optical fibers.
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- Fur, fiber and fiberglass also take advantage of the low conductivity of air by trapping it in spaces too small to support convection.