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To know the meaning of the term fusiform it is necessary, first, to know its etymological origin. In this case, we can underline that it is a word that derives from Latin, exactly it is the result of the sum of two lexical components of that language:
-The noun "fusus", which can be translated as "spindle".
-The word "form", which is synonymous with "figure" or "image".

He adjective fusiform allows you to rate what you have spindle shape (an instrument of greater length than width that is used for spinning).

In general, therefore, that aspect is called fusiform elongate , with narrower tips than the central part. There are fusiform elements in the nature , while others are manufactured by man with this type of structure.

Many aquatic animals have fusiform body . These species they have evolved in such a way that they can move with agility in the aquatic environment: thanks to having a fusiform body, they can swim at high speed and thus hunt or escape from their predators.

Specifically, we can establish that dolphins and even sharks are fusiform species. Precisely that morphology so unique that they have is what leads them to move in the water more easily than other species. It is considered that their uniqueness is the result of what is called evolutionary convergence.

In addition to all of the above, we must not overlook the fact that there are other animals that also have that particularity in terms of their physical appearance. We are referring to the so-called dísissids, which are a family of aquatic-like beetle beetles. They identify themselves because they are not only good flyers but also excellent swimmers.

They have a size that ranges between 2 and 45 millimeters, they carry out a carnivorous feeding, what are the larvae are also aquatic and it should be noted that there is a great variety of species within them. Specifically, it is estimated that there are about 5,000 different ones, among the most significant being some such as celina, hygrotus, acilius, coelambus, bidessus and agabus.

Following the same logic, the vehicles that are mobilized by the Water or for him air They are also usually fusiform. The submarines and the planes they are elongated machines that, by means of this configuration, manage to reduce the resistance that the medium exerts on its displacement.

In the human body, on the other hand, we can find fusiform muscles . These muscles They are characterized by their range of movement, made possible by the route they make to achieve the shortening of their fibers. When a soccer player kicks a ball (a ball), he appeals to various fusiform muscles to lift his leg and then push it forward hard.

It should be noted that muscle tissue is composed of spindle cells : that is, elongated cells. Their constitution allows them to entwine each other and engage to compose the fibers .

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