jueves, 18 de diciembre de 2014

 the touch Our biggest Governing Body is the skin. Has Different Purposes , How to Protect Our internal organs and Infection : The Place Where It is also tactile receptors Our Body is located.
  • The outer layer has a Call skin epidermis and dermis Call nail inner layer . In each of these layers of skin Different tactile receptors or nerve endings They seem better respond to of stimuli are located. Receivers Estós itself Mechanoreceptors : respond to indentations in the skin . An example of this is when a finger is pressed against the back of the hand. There are two types of these mechanoreceptors : those who adapt quickly and those who adapt slowly.ndentations in the skin . An example of this is when a finger is pressed against the back of the hand. There are two types of these mechanoreceptors : those who adapt quickly and those who adapt lentamente.Aunque each of these receptors respond best to these stimuli , they also respond to soe degree to all types of tactile stimuli .
The tactile receptors also us from outside our body and those coming from within our body are experienced as two separate sensations that our brains are able to process so we can perform a variety of actions. When we manipulate a small object like a pen with our hands behind our backs , we know where our hand relative to the other even though they do not touch. We experience the feeling of pen and can explore , rotate and transfer of hand without looking, mostly due to the tactile sensations we experience within our body and from the outsid
The receptors send tactile information to the brain for two main nerve pathways . One of them , called medial lemniscal system of the spine ( DCMLS ) , can be identified as a discriminatory system . This system takes the information we obtain through active exploration and includes information such as pressure , vibration, and proprioception . The other system , called the anterolateral system (ALS ) carries information that helps our body defend itself , based on information about pain and temperature. The DCMLS ends in the somatosensory cortex in the parietal lobe of the brain , located in the upper back of his head. The ALS appears to be a more primitive system and ends in the reticular formation that is located just above the area of the brainstem.
Although these systems are separated , their functions overlap in some way. For example , certain information about pain can be transported by certain data DCMLS and tactile discrimination can be carried by the ALS . This could explain why some children avoid touching or being touched. Damaged if any of these systems , the result can be that the other system is more dominant. The ALS system, which handles pain , is less vulnerable to damage than DCMLS system. Children who exhibit behavior as defensive touch may be responding to touch primarily through the ALS and experience its role to defend . Thermo : respond to temperature changes.
Nioceptores : respond to stimuli that damage the skin as intense heat or the prick of a pin.

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