'Mele o sebelisa lik'hemik'hale tse' maloa tse tsejoang e le li-neurotransmitters ho fetisa melaetsa ho tloha seleng e 'ngoe ho ea ho e' ngoe. E 'ngoe ea li-neurotransmitter tse ngata ka ho fetisisa' meleng oa motho ke acetylcholine, hangata e khutsufatsang ACh. E ka bobeli tsamaiso ea methapo ea methapo (CNS) le tsamaiso ea methapo ea methapo (PNS).
Lebitso acetylcholine le thehiloe sebopeho sa lona.
E na le lik'hemik'hale tse entsoeng ka asiti ea acon le choline. Synapses ea li-cholinergic ke tsona tseo phetisetso ea tsona e leng lipakeng tsa acetylcholine.
Acetylcholine e ne e Fumaneha Joang?
Acetylcholine hase feela e tloaelehileng lik'hemik'hale, empa le eona e ne e le eona ea pele ea neurotransmitter e tsejoang.
E ile ea sibolloa ke Henry Hallett Dale ka 1914, 'me hamorao ho ba teng ha eona ho tiisitsoe ke Otto Loewi. Batho ka bobeli ba ile ba fuoa Moputso oa Nobel Physiology / Medicine ka 1936 bakeng sa ho sibolloa ha bona.
Kamoo Acetylcholine e Sebetsang Kateng
Matšoao
Lefats'e la methapo ea methapo ea mali, motsoako ona oa li-neurotransmitter ke karolo e kholo ea tsamaiso ea methapo e ikemetseng 'me o sebetsa ho etsa hore mesifa e sebetse. Ka har'a tsamaiso ea autonomic, acetylcholine e laola mesebetsi e 'maloa ka ho etsa li-neurons tsa preganglionic tsamaisong e nang le kutloelo-bohloko le e nang le kutloelo-bohloko .
Lefats'e la methapo ea methapo ea pelo, acetylcholine ke neurotransmitter e fetisang lipontšo pakeng tsa methapo ea motlakase le mesifa ea masapo.
E sebetsa likarolong tsa neuromuscular le ho lumella li-neurons hore li khone ho etsa hore mesifa e sebetse. E 'ngoe ea mesebetsi ea mantlha ea acetylcholine ke ho nka lipontšo ho tloha motlakase oa motlakase ho ea mesifa ea' mele ea masapo.
Ka mohlala, boko bo ka 'na ba romela letšoao ho tsamaisa letsoho le letona. Letšoao le tsamaisoa ke likhoele tsa methapo ho lihlopha tsa neuromuscular.
Pontšo e tšoaetsanoa ho pholletsa le khethollo ka motlakase oa acetylcholine, e leng se etsang hore ho be le likarabo tse batlang li le mothating ona.
Hobane acetylcholine e phetha karolo ea bohlokoa liketsong tsa mesifa, lithethefatsi tse susumetsang motsoako ona oa li-neurotransmitter li ka baka likarolo tse sa tšoaneng tsa ho sisinyeha ha mokhatlo kapa esita le ho shoa litho tsa 'mele.
The Brain le Central Central Nervous System
Acetylcholine e boetse e sebetsa libakeng tse fapa-fapaneng ka har'a tsamaiso ea methapo ea bohareng. Ka CNS, acetylcholine e ikamahanya pakeng tsa neurons tse fapaneng libakeng tsa boko tse laolang tšusumetso, ho tsosoa le ho ela hloko. Tsela e mpe ea ho felisa li-cholinergic ho CNS e 'nile ea amahanngoa le ho qala ha lefu la Alzheimer.
Bokong, acetylcholine e sebetsa joaloka neuromodulator. Ho e-na le ho fetisetsa phetoho e tobileng ea synaptic pakeng tsa li-neurons tse itseng, li-neuromodulator li etsa li-neuron tse fapaneng hohle tsamaisong ea methapo. Hape ho CNS, acetylcholine e sebetsa e le karolo ea tsamaiso ea methapo ea pelo 'me e bapala karolo ea tlhokomelo le ho tsosoa.
Lithethefatsi le lithethefatsi tse thibelang mosebetsi oa acetylcholine li ka ba le liphello tse mpe 'meleng' me li ka ba tsa lebisa lefung. Mehlala ea lintho tse joalo li kenyelletsa mefuta e meng ea chefo e bolaeang likokoana-hloko le khase ea methapo.
Ithute ho eketsehileng mabapi le hore na li-neurotransmitters li romela joang, ho matlafatsa le ho itšoara ka mekhahlelo hohle likarolong tse sa tšoaneng tsa 'mele hammoho le hore na ho haelloa ke manģosa ana a lik'hemik'hale ho amahanngoa joang le mafu a itseng.
Lisebelisoa:
Purves, D., Augustine, GJ, & Fitzpatrick, D., et al., Eds. Khopolo-taba . Khatiso ea Bohlano. Sunderland, MA: Metsoalle ea Sinauer. 2012.
Segalate A. & Sapru HN. Ntho ea Bohlokoa ea ho ba le Neuroscience. Khatiso ea Boraro. Philadelphia: Lippincott, Williams & Wilkins. 2014.
Thompson, RF Boko: Ntho ea pele ea thuto ea methapo ea pelo . New York: Bahoeletsi ba Bohlokoa. 2000.