Video: Dab tsi cuam tshuam rau oxygen khi rau hemoglobin?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov pa roj carbon dioxide qib, ntshav pH, lub cev kub, ib puag ncig yam , thiab kab mob tuaj yeem txhua tus cuam tshuam rau cov pa nqa peev xwm thiab xa khoom. Kev txo qis hauv oxygen -nqa peev xwm ntawm hemoglobin tau pom nrog kev nce hauv carbon dioxide thiab kub, nrog rau kev txo qis hauv pH hauv lub cev.
Kuj paub, dab tsi cuam tshuam rau oxygen khi rau hemoglobin?
Ob peb yam cuam tshuam cov khi ntawm oxygen rau hemoglobin : kub, pH, PCO2 thiab 2, 3 diphosphoglycerate (2, 3 DPG). Ua kom qhov kub thiab txias ntawm Hb txo nws cov affinity rau O2 thiab hloov cov oxygen dissociation nkhaus mus rau sab xis, raws li qhia hauv daim duab 3.
Ib yam li ntawd, dab tsi cuam tshuam cuam tshuam rau oxygen dissociation nkhaus? Cov pa -hemoglobin kev sib cais sib cais tuaj yeem txav chaw xws li qhov kev sib raug zoo rau cov pa oxygen tau hloov pauv. Cov yam uas hloov pauv nkhaus suav nrog kev hloov pauv cov pa roj carbon dioxide siab , ntshav kub, ntshav pH, thiab siab ntawm 2, 3-diphosphoglycerate (2, 3-DPG).
Tsis tas li kom paub, Bohr cuam tshuam dab tsi ntawm kev khi oxygen rau hemoglobin?
Cov Bohr effect tau pom thawj zaug los ntawm kws kho mob lub cev Christian Bohr xyoo 1904. Qhov no nyhuv piav qhia tias hydrogen ions thiab carbon dioxide cuam tshuam li cas rau kev sib raug zoo ntawm oxygen hauv Hemoglobin . Yog tias pH qis dua nws ib txwm yog (lub cev ib txwm muaj pH yog 7.4), tom qab ntawd hemoglobin tsis khi oxygen ib yam nkaus.
Cov pa oxygen khi nyob qhov twg hauv hemoglobin?
Oxyhemoglobin. Oxyhemoglobin yog tsim thaum lub sij hawm physiological ua pa thaum oxygen khi mus rau heme feem ntawm cov protein hemoglobin hauv cov ntshav liab. Cov txheej txheem no tshwm sim nyob rau hauv pulmonary capillaries nyob ib sab ntawm lub alveoli ntawm lub ntsws.
Pom zoo:
Kev cuam tshuam cuam tshuam li cas rau nthwv dej?
Lub teeb yog refracted thaum nws hla lub interface los ntawm huab cua rau hauv iav uas nws txav qeeb dua. Txij li thaum lub teeb hloov pauv ntawm lub interface, lub nthwv dej ntawm lub teeb yuav tsum hloov, ib yam nkaus. Lub wavelength txo qis thaum lub teeb nkag mus rau nruab nrab thiab lub teeb yoj hloov pauv kev taw qhia
Lub ntsiab lus ntawm kev cuam tshuam thiab cuam tshuam yog dab tsi?
Feem ntau, koj yuav xav tau cuam tshuam raws li cov lus qhia lub ntsiab lus cuam tshuam rau qee yam thiab cuam tshuam rau qee yam uas tau cuam tshuam. Qhov sib txawv ntawm kev cuam tshuam thiab cuam tshuam yog li ntawd cov neeg tau pib siv 'cuam tshuam' raws li cov lus piav qhia
Dab tsi cuam tshuam rau kev xa oxygen mus rau cov ntaub so ntswg?
Raws li tuaj yeem pom los ntawm qhov sib npaug saum toj no, kev hloov pauv hauv lub plawv tso zis, arterial oxygen saturation, thiab hemoglobin concentration yuav cuam tshuam rau kev xa oxygen
Dab tsi yog x cuam tshuam hauv daim ntawv nqes hav cuam tshuam?
Peb tuaj yeem siv daim ntawv nqes hav-intercept (y = mx + b). Qhov kev cuam tshuam x yog pom los ntawm kev teeb tsa y = 0, vim qhov ntawd yuav ua rau peb x-tus nqi uas cov kab hla ntawm x-axis
Dab tsi cuam tshuam rau oxygen hemoglobin saturation dissociation nkhaus?
Thaum muaj cov pa roj carbon dioxide yaj, pH ntawm cov ntshav hloov pauv; qhov no ua rau lwm qhov hloov pauv hauv cov duab ntawm hemoglobin, uas ua rau nws muaj peev xwm khi cov pa roj carbon dioxide thiab txo nws lub peev xwm los khi cov pa oxygen