Sensory receptors The conductive part of the sensory system consists of sensitive (afferent, centripetal) neurons appendages (dendrites) which allow

Conductive and central part of the sensory systems [receptors, neural pathways, brain]

Sensory receptors

The conductive part of the sensory system consists of sensitive (afferent, centripetal) neurons appendages (dendrites) which allow the flow of information in the form of electrical impulses from the CNS to the receptor structures. Individual sensory nerve fibers form the sensory nerves or are the part of the mixed. The speed of the drive, especially in the nerve fibers that come from external receptors, very high — 120 m/s, i.e. a distance of one meter in length in the electrical impulse travels in 0.008 seconds. Taken from http://worldofschool.org

Neural pathways and parts of the brain

The central part of the sensory system consists of nerve centers in the brain stem and the corresponding areas in the cerebral cortex. In the subcortical centers of the sensory system occurs the primary analysis and synthesis of information that comes from the receptors. A special place in this process takes the thalamus, which receives impulses from all receptors and after certain processing directs them to the cerebral cortex, as well as to the other CNS structures. In the relevant area of ​​the sensory system of the cortex occurs final analysis and synthesis of sensory information. Each sensory system has a certain location. Visual sensory system is predominantly in the occipital area, the motor — in the dark, auditory — in the temporal part of the cortex of the cerebral hemispheres. In the central part of each sensory system occur stimuli recognition and formation of images and sensations.

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Questions:
  • How receptors receive and distinguish the signals?