What is the sensory system?

The

sensory system is part of the nervous system, which consists of nerve roads, sensory receptors and parts of the brain that process sensory information. Sensory receptors recognize stimuli from both internal and external environment, nerve pathways perform information from stimuli to the brain and the brain processes information. The human sensory system is further divided into a somatosensory system, a visual system, a sound and vestibular system, a gustator system and an olfactory system. Stimuli can come from the inner or external environment and excite sensory receptors. Sensory receptors are classified according to the type of stimulus they respond to. In humans, there are different types of sensory receptors in the somatosensory system mechanoreceptors, thermoreceptors, nociceptors and a section of the spindle muscles R receptors. Sensory systems for vision, hearing and balance, taste and olfak have their own set of sensory receptors.

Mechanoreceptors detect pressure or touch changes. ThermorecePTory recognizes temperature changes. Nociceptors detect excessive heat and serious pressure that causes tissue damage and chemical release of damaged tissue. Receptors stretching muscle spindles detect posture and movement.

Photoreceptors are found in the visual system. They contain photopigments that absorb light energy. Corti hair cells are found in the auditory and vestibular system. They detect pressure waves from the sound stimulus and changes in posture and movement. Gustators and Olfak rely on chemoreceptors that detect tastes and odors.

These sensory receptors convert stimuli into electricity, which is carried out along the neurkual Pathways. The nerve pathways of the sensory system are afferent neurons that differ and synapses that perform information, electricity, from a single stimulus. In the somatosensory system they are the most important nerve pathsThe dorsal column media path Lemniscus and spinothalamic tract. The neural path in the visual system includes an optical nerve, while those of sound and vestibular systems include a cochlear nerve and vestibular nerve. Gustator system receptors include facial, glossopharyngeal, and vagus nerves that synapse in the core of a lonely tract found in the brain, and finally the olfactory system receptors include the olfactory nerves that are connected to the olfactory glomeruli, which are located in the cranial cavity base.

With the exception of the olfactory system, nervous paths perform thalamus information and the information is transmitted to the appropriate location in the cortex. Information from visual stimuli is transmitted to the occipital lobe, while from sound and vestibular stimuli are transmitted to the temporal lobe and brain stem and brain. Information about Gustach and somatosensory stimuli is transmitted to a parietal lobe. Although information from olfactory pThe expression can reach Thalam, his nerve journey does not have to pass information to Thalam. The information is transmitted directly to the frontal lobe of the cortex.