Among the systems that shape the human body (and that of all animals) there is one known as the locomotor apparatus , which is capable of consummation of the ability to move that exists in humans, while serving as protection for all the rest of the organs of the body , responsible for the vital functions.
The movement occurs in many ways, it can be voluntary 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 system is integrated of diverse systems, between which appears the nervous system, that provides the generation and the modulation of the orders for the mobility. Fundamentally, it is an apparatus composed of three elements:
- Bones : Firm tissue, in many different forms but with a very complex internal structure that gives rise to the skeletal system of the body . The frame of the human body is given by the bones, which must have a very large capacity to regenerate and reconstitute itself before possible 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, besides being lugres of growth.
- Muscles : Organs contractile of the human body, composed of a muscular tissue that can contract or expand, according to the impulses coming from the nervous system. With it the movements take place, the posture is maintained and the joint stability is achieved.
As mentioned, the nervous system plays a central role in the movement of people. The neurons are the primary means through which information is transmitted in the form of electricity to different parts of the body, immediately execute the movement: people are not aware of the transmission of information, because it is thought that the two facts at the same time. However, at this point a fundamental distinction can be made between movements.
Voluntary body movements
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 perform : to coordinate the goal and movements, the motor cortex first receives different types of information from several 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.
- Move arms
- Move legs
- Go to bed
- Say hello to someone
- Push a button
- Sit down
- Riding a bicycle
- Everything related to practicing a sport
It may serve: Examples Biological Rhythms
Involuntary body movements
What are involuntary movements? The involuntary movements are those that are made without the intermediation of the brain , and thus without the explicit and clear will of the animal that performed by, although they are generally designed for the human body.
A part of the nervous system, different from the nucleus that is the central nervous system, is called the autonomic nervous system and deals with this kind of actions. For them it is that the body is regulated, and is maintained in a balance beyond external impulses.
The autonomic nervous system is divided between the sympathetic system (which mediates the response of hormonal stress, producing all involuntary movements linked to hormones ) and the parasympathetic system (responsible for the regulation of internal organs).
On the other hand, there is another kind of involuntary movements constituted by the reflex acts , which are different because they are originated by the spinal cord: they are involuntary movements but performed immediately to an external stimulus.
The following list shows some examples of movements of the involuntary type:
- Remove the hand when we burn.
- To blink.
- Contraction of the bronchi in the lungs.
- Dilation of the pupil.
- Breathe deeply before entering the water.
- Move the leg by striking the patellar ligament.
- Increased or decreased heart rate (speed of heartbeat).
- Dilation of the bronchi.
- Close your eyes by sneezing.
- Stimulation of the sweat glands.
- Increased production of saliva during sleep.
- Decreased heart rate during sleep.
- The parkinson, as a condition, uses involuntary movements.