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Coming from the Latin word bulbus, the word bulb name one biological root structure whose format resembles a blister . The botany presents it as a thick yolk that is usually located in the underground portion of the plant and that treasures reserve substances.

The bulb, therefore, is a organ that stores nutrients . It is formed when the base of the leaves becomes thicker and has five main parts: the basal disc (where the estate ), the catalogs (where nutrients are stored), the tunica (which protects the catophiles), the stem (with the floral bud) and the lateral buds (which give rise to the new bulbs).

Among the bulbous plants, onion, lily, tulip, garlic and leek stand out. It is possible to distinguish between tunicated bulbs (with overlapping layers surrounding the bases) and flaky bulbs (which present the embedded bases).

However, it should be stressed that in addition to these two types of bulbs in the field of botany, mention should also be made of the existence of a third typology. We are referring to the so-called solid bulbs, which are those that are identified by having a fleshy saucer, because their form of reproduction occurs through the fact that the bulbs grow at the base of the bulb, and by being wrapped in some Dry and thin sheets.

In anatomy , on the other hand, is known as spinal bulb to the part of the medulla that extends from the annular protuberance to the occipital hollow of the cranial structure. The bulb has the appearance of a truncated cone with a lower tip and is responsible for sending impulses from the spinal cord to the brain, regulating the secretion of gastric juices and controlling coughing and sneezing.

In the same way, we must also mention the existence of what is known as olfactory bulb. This one in particular is an organ that is in the brain, exactly in its anterior part, and whose mission is to proceed with the perception of the various odors. To achieve it with complete success, it is based on a series of elements such as axons (prolongations of neurons) and mitral cells.

In the field of astronomy , he galactic bulb it is the central group of stars that are part of the spiral galaxies. These stars are distributed in space in an ellipsoidal manner.

In this field we have to emphasize that there is basically a double typology of bulbs. Thus, in the first place, we find the so-called classic bulbs that are those that are formed by stars that belong to the so-called Population II. Specifically, these have as their main hallmark the fact that they are part of the first generations of stars that were created after the Big Bang. And that without forgetting that they identify themselves as being old, small and reddish.

Second, there are pseudobulbs that are classified as very similar to those that exist in spiral galaxies.

The electronics Finally, it appeals to the term bulb to name the component that is used to amplify, switch or modify an electrical signal.

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