We explain what is the muscular system, its parts and different functions. In addition, how it is classified and muscular diseases.
When referring to the muscular system , we talk about the set of more than 650 different muscles that make up the human body, most of which can be controlled at will and that allow enough force to be exerted on the skeleton to move.
The muscular system of the human being is vast and complex, constituting 40% of the weight of an adult, also generating most of his body heat. Together with the bone system (bones) and the articular system (joints), it constitutes the so-called locomotor system , responsible for movements and displacements of the body.
The muscles that make up this system are in turn composed of cells with a high level of specificity, which gives them specific properties such as elasticity. These cells, called myocytes , can undergo intense stretching and compression without compromising (to some extent) their constitution. This is why muscle fibers are so resistant and elastic.
The muscles are also electrically excitable, and this is how the nervous system controls them.
There are three essential types of muscles:
The muscular system is made up of a huge variety of muscles, among which we find:
The muscular system is vital for the organism, since it takes care of keeping things moving. For example, the heart is an organ that cannot stop pumping blood, because it would cause us to die.
Therefore, your muscles must be strong and designed for continuous exercise. Similarly, digestive movements, from the trachea to the intestines, are muscular, or respiratory, responsibility.
Second, the musculature allows voluntary movement, which is the best way to deal with the environment for living beings: it allows us to mobilize the skeleton and move to change places, or use our limbs in a specific way and build food, caress our loved ones or defend ourselves from an attacker.
Even gestures as simple as moving our eyes or smiling, are due to the punctual action of some set of body muscles.
Muscles can be affected by ailments of different types, such as:
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