The word nodule comes from the Latin “nodŭlus”. S and node means the small cluster of cells, which may be formed in different organs and are usually benign. It could be both a lesion and a physiological functional structure. These slightly raised bumps are solid and can appear on or under the skin and can be more than half a centimeter wide.
In the field of medicine we can find different types of nodules. For example, in the heart there are two nodes in the heart, the atrioventricular node and the sinus node, these are in charge of controlling the passage of electricity that is produced in the heart from the aureoles to the ventricles and is of utmost importance for contraction and relationship of the heart so that it can pump blood to the rest of the body or organism. Another example is the nodule on the vocal cords are benign clusters that grow on both vocal cords due to abuse of the voiceThis occurs over time, the abuse of these leaves as a result a soft and inflamed tissue in each vocal cord; These can become hardened and become lesions called nodules and the more the voice is abused, these will harden and enlarge. There is also the lymph node, which are small glands found in various areas of the body that help the body fight harmful foreign particles, these small bean-shaped organs accumulate cells that help fight infections and other diseases, they are commonly found in areas such as the groin, abdomen, under the armpit and neck.
In geology, nodule is attributed to the round-shaped mineral mass that is located inside certain rocks and that is of different material than these.
