Video: Dab tsi tshwm sim thaum acetylcholine khi rau nws tus txais?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Thaum twg acetylcholine khi rau ob txoj hlua no, cov duab ntawm tag nrho tus neeg txais kev pab hloov me ntsis, qhib cov channel. Qhov no tso cai rau them ions zoo, xws li sodium, potassium, thiab calcium, kom hla daim nyias nyias.
Ib yam li ib tus yuav nug, ua li cas thaum ACh khi nrog tus txais?
Nicotinic cov receptors Nicotine khi rau thiab qhib cov nicotinic acetylcholine receptors , ua raws li cov txiaj ntsig ntawm acetylcholine tshuaj ntawm cov no cov receptors . Thaum twg ACh cuam tshuam nrog nicotinic ACh tus txais , nws qhib Na+ channel thiab Na+ ions ntws mus rau hauv daim nyias nyias.
Ib qho ntxiv, acetylcholine receptors ua dab tsi? Ib acetylcholine receptor (sau luv AChR) yog cov protein sib xyaw ua ke uas teb rau kev khi ntawm acetylcholine tshuaj , tus neurotransmitter.
Hais txog qhov no, tus neeg txais tos twg acetylcholine khi rau?
Acetylcholine receptor anatomy. Lub acetylcholine receptor (AChR) yog ib tug membrane protein uas khi rau cov neurotransmitter acetylcholine (Ach). Cov neeg txais khoom no tuaj yeem faib ua ob hom tseem ceeb ntawm cov neeg txais khoom sib txawv, nicotinic thiab muscarinic.
Thaum acetylcholine khi rau tus neeg txais xov tooj ntawm tes Qhov no tso cai rau sodium nkag mus rau hauv lub cell Qhov no yog piv txwv ntawm hom neeg txais dab tsi?
Cov nicotinic acetylcholine receptor yog ib piv txwv ntawm ligand-gated ion channel. Nws tau tsim los ntawm tsib qhov sib koom ua ke nyob ib puag ncig ib puag ncig kev ua pore. Thaum khi acetylcholine , channel qhib thiab tso cai diffusion ntawm sodium ( Na +thiab potassium (K+) ions los ntawm kev ua pore.
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