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Before proceeding to determine the meaning of the term animal cell, it becomes necessary to discover the etymological origin of the two words that shape it:
-Cell comes from Latin. It is exactly derived from "cellula," which means "small cell." It is formed from the sum of the noun "cella", which can be translated as "cell", and the diminutive suffix "-ula".
-Animal, on the other hand, also derives from Latin. Specifically, it comes from "animal, animalis".

The cells Are the fundamental units with capacity for independent reproduction that form living beings. These are microscopic elements that have a nucleus and a cytoplasm , which are locked in a membrane . A animal On the other hand, it is a living being that can move on its own impulse and feels.

The animal cells , therefore, are those found in the woven of this type of organisms. The vegetables cells Instead, they make up plant tissues.

By having a nucleus defined by the existence of a nuclear membrane , animal cells are part of the group of eukaryotic cells (also calls eukaryotic cells ). In the nuclear membrane, which is porous, is the genetic information. The prokaryotic cells On the other hand, they do not have a nuclear membrane and their genetic information is dispersed in the cytoplasm.

Inside an animal cell, in short, it is possible to recognize several structures. On the one hand there is the cellular membrane , which constitutes the envelope of the cell and delimits it. Inside are the cell nucleus (with the nuclear membrane that encloses the nucleoplasm, where the nucleolus and chromatin are located) and the cytoplasm (where various organelles can be distinguished, such as ribosomes; centrioles; rough and smooth endoplasmic reticulum; Golgi apparatus; lysosomes; and mitochondria).

The lack of cell walls rigid It makes animal cells have the ability to acquire very different forms. In certain cases, these cells can even phagocyte others structures .

In addition to all of the above, we cannot ignore another important series of data on the animal cell such as the following:
-On average, there are about 200 types of animal cells.
- Within the animal cells we can establish that there is a classification that groups them into four: muscle cells, blood cells, nerve cells and epithelial cells.
- Of the mentioned Golgi apparatus it is necessary to emphasize that it has really important functions. And it is responsible for protein modification, plasma membrane production, cell secretion and limosome formation. No less relevant is that it is divided into three regions: the trans-Golgi region, the cis-Golgi region and the medial region.
-It is interesting to know that, as a rule, animal cells differ from plants in that they have a smaller diameter. In addition, it must be clear that they have the objective of carrying out a really defined function.

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