Video: Dab tsi yog txhais los ntawm hluav taws xob excitability?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Excitability yog cov khoom siv sab hauv lub cev uas tso cai rau lub cell tsim ib qho hluav taws xob teeb liab lossis AP teb rau qhov txhawb ntawm qhov loj txaus.
Tsis tas li cov lus nug yog, dab tsi yog cell excitability?
Cell zoo siab . Lus Txhais: Hais txog kev muaj peev xwm ntawm qee tus hlwb kom muaj hluav taws xob zoo siab ua rau kev tsim cov peev xwm ua haujlwm. Neurons, leeg hlwb (pob txha, lub plawv, thiab du), thiab qee qhov endocrine hlwb (piv txwv li, insulin-tso tawm pancreatic β hlwb ) yog excitable hlwb.
Kuj Paub, dab tsi yog cov ntaub so ntswg excitable? ? • hlwb thiab cov ntaub so ntswg nyob rau hauv qhov kev txaus siab yog nrog los ntawm kev muaj peev xwm ua, faib raws cov cellular membrane. Qhov no yog cov khoom ntiag tug ntawm lub cev ntawm cov paj hlwb thiab lawv cov txheej txheem-cov hlab ntsha, cov leeg nqaij.
Yog li ntawd, vim li cas qhov hluav taws xob zoo siab tseem ceeb rau cov neurons thiab cov leeg nqaij?
Tsis txhob tsim lossis ua cov hlab ntsha, lawv muaj ntau tseem ceeb txhawb zog. Muaj peev xwm los teb rau qee yam kev txhawb nqa los ntawm kev tsim khoom hluav taws xob cov cim xws li kev muaj peev xwm ua. Tso cai cov neurons sib tham nrog lwm tus cov neurons , cov leeg nqaij , los yog cov qog.
Vim li cas daim nyias nyias muaj peev xwm tsis zoo?
Thaum neuronal daim nyias nyias yog so, so peev xwm yog tsis zoo vim tias muaj ntau ntawm sodium ions sab nraum lub cell ntau dua li cov poov tshuaj ions sab hauv ntawm tes.
Pom zoo:
Tus kws saib xyuas hluav taws xob hluav taws xob ua dab tsi?
Cov kws saib xyuas hluav taws xob oncology tau qhia tshwj xeeb hauv kev kho hluav taws xob thiab ua haujlwm ze nrog koj tus kws kho hluav taws xob hluav taws xob. Ib feem ntawm lawv lub luag haujlwm yog los tshuaj xyuas koj li cas thiab pab koj daws qhov kev hloov pauv hauv koj txoj kev kho mob. Lawv yuav piav qhia thiab pab koj los tswj cov kev mob tshwm sim
Thaum twg yog siv hluav taws xob hluav taws xob thawj zaug?
Keeb kwm ntawm kev siv hluav taws xob hluav taws xob pib nrog Wilhelm Roentgen xyoo 1895. Wilhelm muaj peev xwm ua thawj xoo hluav taws xob, uas yog nws tus poj niam thiab yeej qhov khoom plig Nobel hauv kev siv tshuaj hauv xyoo 1901 vim nws qhov kev tshawb pom tshiab
Puas yog koj siv hluav taws xob tom qab kev kho hluav taws xob?
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Tsis-ionizing (lossis tsis-ionising) hluav taws xob yog hais txog txhua hom hluav taws xob hluav taws xob uas tsis muaj lub zog txaus rau quantum (photon zog) rau ionize atoms lossis molecules - uas yog, kom tshem tawm cov hluav taws xob los ntawm lub atom lossis molecule