Among the systems that shape the body (and that of all animals) there is one known as the locomotor system, which is capable of consummating the ability to move that exists in human beings, serving in turn as protection for all the rest of the body organs, responsible for vital functions.
Movement occurs in many ways, coulding bevoluntary or involuntary, but it is inevitable for the survival of a species to have the ability to put it into practice and, above all, to control it and be aware of the use of movement.
The locomotor apparatus It is made up of various systems, including the nervous system, which provides the generation and modulation of orders for mobility. Fundamentally, it is a device composed of three elements:
- Bones: Firm tissue, of very varied shapes but with a very complex internal structure that gives rise to skeletal system of the bodypo. The framework of the human body is given by the bones, which must have a very great capacity to regenerate and reconstitute in the event of problems.
- Joints: The point of contact between two bones of the body, constituted by a union formed by a tissue that can be composed of different matter. They provide elasticity and plasticity to the body, as well as being growth sites.
- Muscles: Contractile organs of the human body, made up of muscular tissue that can contract or expand, according to impulses from the nervous system. With it movements are produced, posture is maintained and joint stability is achieved.
As said, the nervous system it has a central role in the movement of people. The neurons They are the main means through which information is transmitted in the form of electricity to the different parts of the body, which immediately execute the movement: people are not aware of this transmission of information, since it is thought that the two events occur at Same time. However, at this point a fundamental distinction can be made between movements.
See also: The 21 Organs of the Human Body (and its functions)
What are the voluntary movements? It happens that the different parts of the brain are in charge of ordering the different voluntary movements that the body can performTo coordinate the target and movements, the motor cortex first receives different types of information from various lobes of the brain.
The following examples constitute a list of examples and cases of voluntary movements of the human body, coordinated by the brain.
- To move the arms
- Stop
- Move your legs
- Lie
- Run
- Eat
- Talk
- Say hello to someone
- Swim
- Push a button
- Bend
- Sit down
- Walk
- Riding a bicycle
- Everything related to practicing a sport
It can serve you: Examples of Biological Rhythms
What are involuntary movements? The involuntary movements are those that are carried out without the intermediation of the brain, and therefore without the explicit and clear will of the animal that performs them, although they are generally intended for the human body.
A part of the nervous system, different from the nucleus that is the central nervous system, is called autonomic nervous system and deals with this class of shares. It is for them that the body regulates itself, and remains in a balance beyond external impulses.
The autonomic nervous system is divided between the sympathetic system (which fulfills the function of mediating the hormonal stress response, producing all the involuntary movements linked to hormones) and the parasympathetic system (responsible for the regulation of internal organs).
On the other hand, there is another class of involuntary movements constituted by the reflex acts, which are different because they are originated by the spinal cord: they are involuntary movements but carried out immediately to an external stimulus.
The following list shows some examples of involuntary movements:
- Withdraw your hand when we get burned.
- Cry.
- To blink.
- Contraction of the bronchi in the lungs.
- Pupil dilation.
- Take a deep breath before entering the water.
- Move the leg when hitting the patellar ligament.
- Increase or decrease in heart rate (speed of heart beat).
- Dilation of the bronchi.
- Close your eyes when sneezing.
- Ejaculation.
- Stimulation of glands sweaty.
- Increased saliva production during sleep.
- Decreased heart rate during sleep.
- Parkinson's, as a condition, uses involuntary movements.
