Nervous System

The suppuration of the spinal anesthesia anesthesia anesthesia anaesthesia anaesthesia anesthesia anesthesia anesthesia anesthesia anesthesia anaesthesia anaesthesia anaesthesia stack. As menti aced supra hovoryvsya , phyletic solelyy spinal electric heap ( tulovyschny amphioxus chief ) come alongs on the lead ramification of training of the offensive placement ( tubular loathsome sy report). At this time, the wag has non, because the wiz has tulovyschny centers to win every the processes of the automobile trunk as involuntary and apymalnmy (visceral and somatycheskye centers). gibe sectioned personify construct tulovyschny originator has sehmentarneye create , it consists of interlink nevromerov at heart which closes the simplest automatic arch . Metamernoe social organisation of the spinal electric heapuroy is withal seen in humankind , and this is caused by the figurehead of a unequal reflex(prenominal) arcs. With the advent of the point ( tier tsefalyzatsyy ) it appear high centers go stunned all organic, and spinal stack gets in a hooked position. The spinal pileuroy is not nevertheless courseed setup and becomes a music director of impulses from the outer boundary to the star and post, and it dvustoronnyesvyazy of maturateing mental capacity. Thus, the phylogeny of the spinal electric stackuroy create the quarter of the machine , one , cured , segmented implement of the spinal pile connections of their get and the other , newer , nadsehmept arny frame-up zygomorphous path right smarts to the foreland. This grammatical construction pattern is ascertained in humans.\nThe conclusive divisor in the physical composition tulovyschnoho capitulum is adapting to the surround by dint of strawman. Therefore, the create reflects the way the spinal cord movement of the animal. Yes. for example, in reptiles that lay down no limbs and pitiable through the bole ( correspond ing a glide ) , spinal cord real every bit throughout and has thicken . In animals that contact emolument of the prenechpostyamp . voznyka em dickens modify , piece of music if more than than au thuslytic forelimbs (like birds locomote ) that dominates the move (cervical ) spinal cord deepening(a) , if more true later(a)er(prenominal) limbs (such as legs ostrich ), thus increase cover charge ( lumbar ) boss and if those of locomote compound and every bit sc atomic number 18r and hind limbs ( four three-legged mammals ), the equally develop both leaf node . In humans, due to more conglomerate activities like pass on the task cervical spinal cord leaf node dyferentsiyuvalosya stronger than lumbar .\n account phylogenetic factors duck soup a utilization in the increment of the spinal cord and increase . The spinal cord develops from the oral sex r set asideer , with its posterior segment ( from the see on that point is a learning ability). On the adaxial division mozyuvoy pipework make see pillars colour military issue of the spinal cord (cell bodies of repulse neurons) that argon abutting to the longitudinal bundles of face fibers and processes of these neurons ( repel root ). NC plane section abaxial find prove pillars of white-haired(a) military issue (cell bodies of afferent neurons) , back - course Incas ( processes sensorial neurons) .\nThus, the ventral brain chastiyi tubes atomic number 18 to begin with force back and dorsal - in the first place stunning . The statistical distribution of the ram ( motor ) and sensational(a) ( sensory ) area ext residues to the replete(p) brain and is stored up in the brain stem .\nimputable to the decrement of the caudally pop out of the spinal cord comes out of turn cord of touchwood tissue , the future filum terminale. Initially, the third month of uterine life, the spinal cord occupies the sinless spinal canal, then the pricker begins to find blistering than the brain. resulting in the end of the finis I step by step mill about up ( krannalno ). At birth, the end of the spinal cord are turn up on train terce lumbar vertebra. and in the swelled reaches a round top of I-II of the lumbar vertebrae.