TrunkTrunk is a word which comes from latin truncus and that can refer to something mutilated or severed (that is to say, truncate). The most common use of the term refers to the most important structure of the trees, which is responsible for supporting the branches and the other components of the plant.

For instance: “The trunk of this historic tree has a diameter of one meter”, “The boy hid inside a log and remained hidden for hours”, “We had to move a log that was crossed in the road to continue our journey”.

The trunk is a class of stem, which is very hard and compact. Although it is protected by a layer known as Cortex, can be damaged by the human being, the animals and even by meteorological phenomena. In the case of persons, the trunk is used to obtain wood, one of the most used materials in construction. Thanks to the processing of the logs, it is also possible to use them to obtain paper and firewood.

For the anatomy, the trunk is the portion of the body of animals and people that exists if the limbs and head are not taken into account: “The police found a trunk in a state of decomposition: the victim could not yet be identified”, “The teacher asked us to draw a log with her organs”.

On a colloquial level, in some countries a trunk is classified as the subject that has no talent or what It does not work for a certain task: “This footballer is a stump, I don’t understand why the coach makes him play”, “I like to play the guitar, but I am a trunk”.

Arterial trunk

TrunkA congenital heart disease is called the arterial trunk, which occurs from birth, characterized by the presence of a single blood vessel (which receives the name of the disorder itself) at the outlet of the right and left ventricles, unlike the design normal, featuring the aorta and pulmonary artery.

In addition to this anomaly, the arterial trunk is usually accompanied by an orifice that connects both ventricles, which carries a mixture of blood oxygenated and deoxygenated. Most often, the lungs receive more blood than necessary and, if effective treatment is not applied in time, the following may occur:

* breathing can be affected due to the accumulation of fluid in the lungs caused by the excess of blood mentioned above;

* the blood vessels that connect the lungs can get damaged permanently, making it increasingly difficult to pump blood (pulmonary hypertension), putting the person’s life at risk.

Among the main symptoms of the arterial trunk are the following:

* developmental failure or delay;
* bluish-colored skin (cyanosis);
* lethargy;
* fatigue;
* disorders in food;
* shortness of breath (dyspnea);
* breathing too fast (tachypnea);
* the ends of the fingers of the hands can be widened (hippocratic fingers).

Doctors usually detect the arterial trunk by perceiving a murmur during auscultation of the heart. Some of the tests associated with this disorder are: echocardiography; electrocardiogram (ECG); magnetic resonance imaging of the heart; cardiac catheterization, which is not usually used unless it serves to define the diagnosis in very particular cases; chest x-ray.

The treatment of the arterial trunk requires a surgical operation, through which the malformation is corrected, providing the patient with both arteries that he should have had from birth. The trunk vessel is usually dedicated to the role of the aorta, using an external tube or tissue to recreate the pulmonary artery. Also, the hole between the two ventricles closes.