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Chemistry How does this happen? The neurotransmitter substances are synthesized by neurons, usually stored in small vesicles (pouches) spherical, located at the end of a dendrite. In Figure 3 we can observe the membrane before synapse (presynaptic) occurs when the release of neurotransmitter substances, and then the synapse membrane (postsynaptic) when the neurotransmitters are received. The vesicles rupture in the presynaptic membrane and release chemicals (neurotransmitters) such as dopamine, epinephrine, norepinephrine, serotonin, occurring passage of nerve impulses. Then, the neurotransmitter substance is received in the postsynaptic membrane by specialized proteins. The vesicle is then recovered and recharged with neurotransmitter substances again, repeating the process. Scheme 3 Protein receptor Synaptic cleft Membrane post-sinápticca Passage of neurotransmitter substances from one cell to another - Button synaptic - chemical synapse. And how nerve impulses happen? As they "walk", spread by neurons? Let us remember! The cells have a semipermeable membrane which separates the internal environment (intracellular) composed of water, proteins and inorganic salts (such as table salt, NaCl) from the external (extracellular) where the cells are immersed into solutions that have the same substances from the intracellular medium with different concentration. As the substances inside and outside the cell are in aqueous medium, there ions with different amounts of electric charges which are different from two sides as sodium ions, potassium, calcium, chlorine, phosphate, organic ions, leaving the cell membrane of the neurons polarized (with poles). Such configuration generates a potential difference between the two sides. The potential difference (DDP) is associated with variations of potential energy per unit charge. Here these "charges" are manifested through ions. The Life They Do not Have No Grace
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Kemija Kako se to dogodilo? Neurotransmitera tvari sintetiziraju se neurona, obično pohranjeni u malim vrećicama (vezikule) sfernih, koji se nalazi na kraju dendritne. Na slici 3 se može promatrati membranu prije sinapse (presinaptični) nastaje kada oslobađanje neurotransmitera tvari, a zatim sinapse membrana (postsinaptični) kada su neurotransmiteri su primili. Vezikule ruptura membrane Presinaptički i oslobađanje kemikalija (neurotransmiteri) kao što su dopamin, epinefrin, norepinefrin, serotonin, koji je nastao prolaz živčanih impulsa. Zatim, neurotransmiter tvar primili u membrani postsinaptični specijalizirane proteine. Mjehurić onda se oporavio i puniti sa neurotransmiter tvari ponovno, ponavljajući proces. Shema 3 Protein receptora Synaptic rascjepa Membrane post-sinápticca Prolaz neurotransmiter tvari iz jedne ćelije u drugu - Button sinaptičke - kemijski sinapse. A kako živčanih impulsa dogoditi? Dok su "hodati", prenosi neurona? Sjetimo se! Stanice imaju polupropusni membranu koja razdvaja unutarnji okoliš (unutarstanični) sastoji od vode, bjelančevina i anorganske soli (kao što su kuhinjska sol, NaCl) iz vanjske (izvanstaničnog) gdje stanice su uronjeni u rješenja koja imaju ista tvari iz unutarstaničnih medij s različitim koncentracijama. Kao što su tvari unutar i izvan stanice u vodenom mediju, postoje ioni s različitim količinama električne optužbi koje su različite od dvije strane su natrijeve ione, kalij, kalcij, klor, fosfata, organskih iona, ostavljajući stanične membrane od neurona polariziranih (s polovima). Takva konfiguracija stvara razliku potencijala između dviju strana. Razlika potencijala (DDP) je povezan s varijacijama potencijalne energije po jedinici naboja. Evo ti "troškovi" se manifestira kroz iona. Život Nemaju No Grace