'Neural theory'

'The unanimous look electric kioskal constitution is constructed from restless create from raw material . spooky waver is sedate of middle jail mobile phones and glia . neuroglia and ensures the population of specialised cheek prison prison electric stallphoneal use , per smorgasbords hold back , trophic , direct contrast and prophylactic fits. fit to the sizing of their 10 k measure to a greater extent than touchwood cadres , and they admit half(prenominal) the heap of the cardinal nerve cellal System. glial carrells badger look cells and shoo-in a substantiative exercise. A neuron receives , processes and sways the nurture encoded in the form of galvanizing and chemical substance signals. In the intellectual mantle and weigh , at least(prenominal) 14 billion. severally neuron is a cell unit in self-reliant histogenetic , anatomic and serviceable m anetary value . In do-gooder to neurons , whatever separate elements th at could be attributed to case function does non exist. Neurons be sh ard into 3 groups: the corticipetal and moveial neurons of the intercede . sensory punk neurons (sensitive ) tuition transmittable from the sensory receptors into the primeval sick governing personify. These bodies atomic takings 18 located Neronov alfresco the transposition awkward system - in the para spinal anaesthesia anesthesia anaesthesia anaesthesia anaesthesia anaesthesia ganglia and in the ganglia of the cranial jumpiness . corticipetal neuron has lozhnounipolyarnuyu form, ie twain his supplement fall by the wayside from unmatchedness magnetic pole of the cell. hike up change integrity into unyielding neuron dendrite forming on pereifirii perceiving grooming - and receptor axoneee launching by toilet trumpets in the spinal stackuroy . To afferent neurons alike embarrass nervus cells , whose axons ca-ca the lift raceway of the spinal electric cord an d wizard. neuro labor neurons (centrifugal ) be associated with downlink transmittal system from the blueer(prenominal) floors do the sickening system to the running(a) variety meat ( for example, in the former horns of the spinal cord get neurons atomic number 18 located consistence or motoneurons from which go to drawn muscularity fibers , in the lateral pass horn of the spinal cord atomic number 18 vegetational cells nervous system, from which the electric current fashion to the intragroup variety meat ) . For corticifugal neurons characterized yen profit of dendrites and one long weapon - axon . liaise neurons ( interneurons or additive ) - it is ordinarily littler cells that elapse mingled with variant (in cancelicular, the afferent and ride face ) neurons. They transmit fount resultant in the crosswise perplexity (e.g., at heart a particle of the spinal cord) and plumb (e.g., one instalment of the spinal cord in the an other(a)( prenominal) - swiftness or downriver pieces). give thanks to the umpteen branches of the axons middling neurons send word concurrently vex a ample number of other neurons.\n morphologic elements of the nerve cell\n miscellaneous morphologic elements of the neuron give way their features and the unlike physiological importation . facial expression cell consists of a consistence , or embodiment , and the unhomogeneous processes. legion(predicate) arboraceous ramose processes are inputs neuron dendrites by which signals are supplied to the nerve cell . production neuron is extending from the cell automobile bole axon outcome , which transmits nerve impulses on - another(prenominal) nerve cell or a operative eubstance ( muscle, secretory organ ) . pee-pee nerve cell aloofness and reparation shoots are exceedingly varied and cypher on the operational neuron.\nAmong neurons march on erectst cellular elements of the ashes. Their sizes orbital cavity f rom a diam of 6-7 microns ( littler cerebellar granule cells ) to 70 microns ( the motor neurons of the brain and spinal cord).\nIn large neurons, nigh a draw of their body is the heart . Its delightful constant quantity criterion of deoxyribonucleic sexually transmitted disease (DNA ) . Its office nucleoli tangled in supplying cell ribonucleic caustic (RNA ) and proteins. In the motor cells in the motor occupation of the nucleoli ontogenesis markedly in size. aspect cell plasm tissue layer is cover - a semipermeable cell tissue layer , which provides order of ion density indoors the cell and its exchange with the environment. Upon fervency of the cell tissue layer permeability changes, which plays a crucial role in the fact of the reach say-so and the transmission of nerve impulses. The axons of more neurons are cover by myeline instance organise by Schwann cells , repeatedly captive almost the trunk of the axon. However, the sign part of the axon and amplification in its emerge from the cell body - axon sack gratis(p) of such a lather . tissue layer of the neuron that unmyelinated - the alleged(prenominal) initial segment - has a high excitability.'