Video: Tus neeg txais khoom twg yuav atropine block?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
muscarinic acetylcholine receptors
Nyob rau hauv tas li ntawd, cov hlab ntsha uas nqa feem ntau parasympathetic fibers?
vagus paj
Tsis tas li ntawd, atropine cuam tshuam li cas rau parasympathetic paj hlwb? Kev ua ntawm tus kheej lub paj hlwb Atropine yog ib qho kev sib tw inhibitor ntawm acetylcholine muscarinic receptors. Nws qhov kev nqis tes ua rau txo qis ntawm parasympathetic tonus, yog li ntawd qhov kev cuam tshuam ntawm kev khuv leej paj hlwb dhau los ua tus thawj.
Ua li no, yam tshuaj twg thaiv cov kab mob parasympathetic?
Muscarinic receptor antagonists tawm tsam cov kev ua ntawm parasympathetic paj hlwb. Piv txwv ntawm antagonists suav nrog atropine thiab hyoscine (scopolamine) uas muaj nyob hauv cov nroj tsuag Atropa belladonna thiab Datura stramonium.
Yuav ua li cas cov tshuaj uas txhawb nqa cholinergic receptors cuam tshuam rau lub paj hlwb?
Vim tias preganglionic fibers ntawm SNS tso tawm ACh , ib tshuaj uas txhawb nqa ACh receptors yuav txhawb nqa postganglionic fibers ntawm sympathetic paj hlwb , ua rau nce ntxiv khuv xim kev ua.
Pom zoo:
Cov neeg txais khoom twg yoog sai?
Ceev nrooj hloov kho: Hloov kho tus neeg kho tshuab nrawm suav nrog Meissner lub cev qhov kawg ntawm lub cev, Pacinian lub cev qhov kawg ntawm lub cev, cov hauv paus plaub hau tau txais thiab qee qhov kawg ntawm lub paj dawb
Qhov twg ntawm cov hauv qab no yog piv txwv ntawm tus neeg txais khoom ionotropic?
Ionotropic receptors. Ionotropic receptors yog qhov sib txuas ua ke ntawm cov protein, nrog ntau hom subunit uas pab pawg ua ke los tsim cov channel ion thiab nws qhov chaw sib txuas ligand. Piv txwv yog nicotinic ACh receptor (nAChR) (Daim duab
Tus neeg txais khoom twg yog lub luag haujlwm rau ob qho kev ntxub ntxaug?
Lub kaw lus tactile, uas yog qhib rau hauv qhov kev ntsuam xyuas ob qhov kev ntxub ntxaug, ntiav ntau hom receptors. Ib tus neeg hnov qab lub ntsej muag lub ntsej muag tuaj yeem txhais tau tias yog qhov kawg ntawm qhov hnov ntawm lub paj hlwb thiab nws cov khoom siv ntxiv, uas tuaj yeem yog ib feem ntawm cov hlab ntsha ntawm tes lossis tuaj yeem los ntawm epithelial lossis cov ntaub so ntswg sib txuas
Cov neeg txais khoom twg siv ipratropium?
Ipratropium bromide (cov npe lag luam Atrovent, λ Apovent, thiab Aerovent) yog cov tshuaj anticholinergic -thaiv muscarinic receptors. Salbutamol lossis albuterol yog qhov ua tau luv luv β2-adrenergic receptor agonist siv rau kev kho mob ntsws ntsws
Cov cim twg yuav cia siab rau tus neeg uas muaj kev nyuaj siab rau tus neeg saib xyuas?
Yam twg ntawm cov cim hauv qab no yuav xav tau rau tus neeg uas muaj kev mob nkeeg? Xaiv txhua yam uas siv tau. Teb: quaj ntau zaus, poob kev txaus siab rau cov haujlwm ntxim nyiam, hloov pauv kev pw, yooj yim npau taws los ntawm tus neeg txais kev saib xyuas