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

For example: "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 way to continue our journey”.

The trunk is a kind 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 people , 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 exist 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”.

At the colloquial level, in some countries the subject is classified as a trunk he has no talent or what it doesn'' T work for a given task: "This player is a trunk, I do not understand why the coach makes him play", “I like to play the guitar, but I am a log”.

Arterial trunk

Congenital heart disease is called an arterial trunk, which occurs from birth, characterized by the presence of a single blood vessel (which is called the disorder itself) at the exit of the right and left ventricles, unlike the design normal, which has the aorta and pulmonary artery.

In addition to this anomaly, the arterial trunk is usually accompanied by a hole that connects both ventricles, which leads to 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 may be affected due to the accumulation of fluid in the lungs caused by the aforementioned excess blood;

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

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

* insufficiency or developmental delay;
* bluish skin (cyanosis);
* lethargy;
* fatigue;
* disorders in food;
* shortness of breath (breathlessness);
* breathing too fast (tachypnea);
* the ends of the fingers can widen (hypocritical fingers).

Typically, doctors 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); MRI 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, giving the patient both arteries I should have had since birth. The trunk vessel is usually dedicated to the role of the aorta, using a tube or external tissue to recreate the pulmonary artery. In addition, the hole between both ventricles closes.