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The notion of make It has multiple uses. The first meaning that the Royal Spanish Academy (RAE ) in its dictionary alludes to tied stems, firewoods, spikes or similar elements .

Following in the context of the botany , it is called the beam upper side of a sheet . The beam is usually smoother and brighter than the underside (the underside). It is also called beam to the face of a fabric or to the face of any other element that is more valuable to the touch or sight.

For the anatomy , a beam is a group of nerve or muscle fibers . These fibers are grouped in parallel, as in the case of the His beam.

His beam is the atrioventricular fascicle , a formation located within the heart that is composed of a cord Slim muscular type with an approximate length of 1 centimeter. It is found in the conduction system, which serves for the ventricles to perceive the excitation of the atria.

It is possible to distinguish two parts of the His beam: a segment inframembranous, which extends along the membranous portion along the perimeter of its lower poster quadrant; the short segment (or piercing), whose extension does not exceed 5 millimeters and cuts the fibrous trigone.

The origin of the beam of His is in the tawara nodule , also know as node atrioventricular, Aschoff-Tawara nodule or atrioventricular node. It is a set of heart cells located in the right atrium that specialize in forming and conducting the electrical impulses of the heart.

From the Tawara nodule, the His beam passes through the underside of the interatrial septum. One of the diseases related to this part of the body is known by the name of branch lock precisely because the electrical impulse that should propagate through the organ finds a blockage in the branches of the beam.

There is in the heart a "natural pacemaker," called a sinus node, a set of cells that are in the right atrium and specialize in sending impulses electrical many times per minute to stimulate contraction (what we perceive as the "beat"). The impulse passes first through the upper cavities and then through the Tawara nodule, which stops it and transfers it to the His beam, where blockage can take place.

For the two ventricles to perform the contraction simultaneously it is necessary that the electrical impulse propagates through the right and left branches at the same speed. If one of them does not work normally, the impulse must pass through another route. This slows it down and causes one of the ventricles to take a fraction of a second longer than the other to contract. Possible causes include cardiomyopathies, valvular diseases and coronary arteries.

Beam, on the other hand, is a set of Ray or of particles They have the same origin. A beam of light, in this sense, is an electromagnetic radiation that starts from a point in common.

The geometry , meanwhile, appeals to the idea of ​​beam to refer to the planes that concur in a certain line or to the lines that cross the same point.

It should be noted, finally, what you do is a conjugation of the verb do , corresponding to the imperative form of the second person singular. For example: "Do what you want, but don't come to bother me", "I will tell you in a simple and direct way: do what I order if you do not want to have problems", “Son, if you want to get my permission to go to the game, first do the homework and then we'll talk”.

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