Qhov sib txawv tseem ceeb ntawm kev ua kom qab ntsev thiab kev ua kom tsis tu ncua yog tias kev ua kom muaj ntsev yog kev nthuav tawm ntawm kev ua haujlwm raws li myelinated axons thaum nruam conduction yog kev nthuav tawm ntawm kev ua tau zoo nrog cov tsis muaj myelinated axons.
S altatory thiab nruam conduction yog ob hom kev sib kis ntawm kev ua haujlwm ntawm cov hlab ntsha. S altatory conduction tshwm sim nyob rau hauv myelinated axons los ntawm ib tug ntawm Ranvier mus rau lub tom ntej node. Yog li, qhov ua tau zoo tsuas yog tsim los ntawm cov neurofibrils hauv myelinated axons. Li no, nws yog ceev tshaj qhov nruam conduction. Nruam conduction tshwm sim raws tag nrho ntev ntawm unmyelinated axons.
Kev coj ua S altatory yog dab tsi?
S altatory conduction yog txoj kev ceev tshaj plaws ntawm kev xa paj hlwb. Nws tshwm sim hauv myelinated axons. Myelinated axons muaj myelinated sheaths. Nyob rau hauv nruab nrab ntawm myelinated sheaths, muaj uninsulated qhov chaw (seg ntawm unmylination) hu ua nodes ntawm Ranvier. Yog li ntawd, paj hlwb impulses dhia los ntawm ib qho ntawm Ranvier mus rau tom ntej es tsis yog taug kev raws tag nrho qhov ntev ntawm axon. Yog li ntawd, cov hlab ntsha impulses taug kev nrawm nrog myelinated axons.
Daim duab 01: S altatory Conduction
Ntxiv mus, salutatory conduction siv tsawg kawg nkaus ntawm cov kab hluav taws xob sib piv rau qhov txuas txuas mus ntxiv. Li no, nws tiv thaiv kev ncua ntawm paj hlwb impulses. Tsis tas li ntawd, salutatory conduction yog qhov ua tau zoo dua vim tias nws siv lub zog tsawg dua los tuav lub peev xwm so ntawm daim nyias nyias.
Kev Ua Txhaum Nruam yog dab tsi?
Nruam conduction yog txoj kev thib ob ntawm kev xa paj hlwb. Nws tshwm sim nyob rau hauv unmyelinated axons. Lub peev xwm ua tau yog tsim los ntawm tag nrho qhov ntev ntawm axon. Li no, nws yuav siv sijhawm los tsim thiab xa cov peev txheej ua haujlwm.
Daim duab 02: Nruam vs S altatory Conduction
Piv rau salutatory conduction, nruam conduction qeeb. Tsis tas li ntawd, nws siv zog ntau dua. Yog li ntawd, nws yog ib tug tsawg npaum li cas. Tsis tas li ntawd, nws ncua lub paj hlwb vim nws siv ntau dua ntawm ion channel los tsim kom muaj peev xwm ua tau.
Dab tsi yog qhov zoo sib xws ntawm S altatory thiab Continuous Conduction?
- S altatory thiab nruam conduction yog ob txoj hauv kev ntawm kev sib kis ntawm qhov kev ua muaj peev xwm raws li cov neurons.
- Qhov peev xwm ua tau tsim tawm hauv ob txoj hauv kev.
- Ntxiv mus, ion channel koom nrog ob txoj hauv kev.
Qhov txawv ntawm S altatory thiab Continuous Conduction yog dab tsi?
S altatory thiab nruam conduction yog ob txoj hauv kev ntawm cov teeb liab kis raws cov hlab ntsha. Slatatory conduction tshwm sim los ntawm myelinated axons. Nyob rau hauv sib piv, nruam conduction tshwm sim ntawm unmyelinated axons. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm salutatory thiab txuas ntxiv mus.
Ntxiv mus, cov hlab ntsha impulse taug kev ntawm cov leeg ntawm Ranvier hauv kev ua kom muaj ntsev, thaum lub paj hlwb ncig mus rau tag nrho qhov ntev ntawm axon hauv kev txuas mus ntxiv. Yog li, peb tuaj yeem txiav txim siab qhov no ib yam li qhov sib txawv tseem ceeb ntawm kev ua kom qab ntsev thiab kev ua haujlwm tas mus li. Tsis tas li ntawd, kev siv hluav taws xob tsawg tsawg hauv kev siv hluav taws xob thaum lub zog siv hluav taws xob yog siab nyob rau hauv kev ua haujlwm tas mus li.
Cov lus qhia hauv qab no qhia txog qhov sib txawv ntawm kev ua kom qab ntsev thiab ua ntu zus.
Summary – S altatory vs Conduction Conduction
S altatory conduction tshwm sim nyob rau hauv myelinated axons uas tso cai rau kev txiav txim muaj peev xwm tshwm sim tsuas yog nyob rau ntawm cov leeg ntawm Ranvier. Yog li ntawd, cov hlab ntsha impulses taug kev nrawm nrawm los ntawm ib qho ntawm Ranvier mus rau lwm qhov. Yog li ntawd, salutatory conduction yog txoj kev ceev tshaj plaws ntawm kev sib kis ntawm qhov ua tau zoo. Nyob rau hauv sib piv, nruam conduction tshwm sim nyob rau hauv unmyelinated axons. Lub peev xwm ua tau yog tsim los ntawm tag nrho qhov ntev ntawm unmyelinated axon. Li no, nws kis paj hlwb impulses maj mam. Ntxiv mus, salutatory conduction yog ntau npaum li cas vim nws lub zog siv yog tsawg piv rau nruam conduction. Yog li, qhov no qhia txog qhov sib txawv ntawm salutatory thiab nruam conduction.
