Xwb, ib qho tshuaj neurotransmitter feem ntau tuaj yeem khi rau thiab qhib ntau yam sib txawv receptor proteinsTxawm tias cov txiaj ntsig ntawm qee yam neurotransmitter yog excitatory lossis inhibitory ntawm ib qho synapse nyob ntawm seb qhov twg ntawm nws. receptor(s) muaj nyob rau ntawm postsynaptic (target) cell.
Puas neurotransmitters khi rau cov chaw tshwj xeeb?
Txhua tus neuron feem ntau tsim tsuas yog ib hom classic neurotransmitter. Tom qab lawv exocytosis los ntawm synaptic vesicles mus rau hauv lub synaptic cleft, neurotransmitters khi rau tshwj xeeb receptors ntawm plasma membrane ntawm postsynaptic cell, ua rau muaj kev hloov pauv hauv nws cov permeability rau ions.
Yuav ua li cas neurotransmitters khi rau qhov chaw receptor?
Tom qab tso rau hauv cov synaptic cleft, neurotransmitters cuam tshuam nrog receptor proteins ntawm cov membrane ntawm postsynaptic cell, ua rau ionic channel ntawm daim nyias nyias los qhib lossis kaw. Thaum cov channel no qhib, depolarization tshwm sim, ua rau pib ntawm lwm qhov kev ua tau zoo.
Cov neurotransmitters khi nyob qhov twg?
Neurotransmitters yog khaws cia rau hauv synaptic vesicles, clustered ze rau lub cell membrane ntawm lub axon davhlau ya nyob twg ntawm presynaptic neuron. Neurotransmitters raug tso tawm rau hauv thiab nthuav dav thoob plaws lub synaptic cleft, qhov twg lawv khi rau tshwj xeeb receptors ntawm daim nyias nyias ntawm postsynaptic neuron
Yuav ua li cas receptors ua neurotransmitters khi rau?
Muaj ob hom neurotransmitter receptors: Ionotropic receptors (Ligand-gated receptors) Metabotropic receptors (G-protein coupled receptors).
