Video: Dab tsi ua rau cov pa oxygen dissociation nkhaus hloov mus rau sab xis?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov kub thiab txias nce ntxiv ua haujlwm cov nkhaus mus rau txoj cai , thaum txo qhov kub ua haujlwm cov nkhaus mus rau sab laug. Ua kom qhov kub tsis sib xws sib luag ntawm oxygen thiab hemoglobin, uas ua rau nce nyiaj ntau oxygen thiab hemoglobin thiab txo qis cov concentration ntawm oxyhaemoglobin.
Tib neeg tseem nug, dab tsi ua rau cov pa oxygen hemoglobin nkhaus nkhaus hloov mus rau sab xis?
Ib qho kev nce siab ntawm BPG hauv cov qe ntshav liab nyiam tsim T, lub xeev qis ntawm hemoglobin thiab yog li ntawd oxygen -kev khi nkhaus yuav hloov mus rau sab xis.
Tsis tas li ntawd, vim li cas CO thiaj hloov qhov nkhaus mus rau sab laug? Cov pa roj carbon monoxide ( CO ) cuam tshuam nrog kev thauj oxygen ntawm cov ntshav los ntawm kev sib xyaw nrog hemoglobin los tsim carboxyhaemoglobin (COHb). Lub xub ntiag ntawm COHb kuj ua rau cov pa oxygen dissociation nkhaus yuav tsum tau hloov mus rau sab laug , cuam tshuam nrog kev tshem tawm cov pa oxygen.
Raws li, DPG oxygen dissociation nkhaus yog dab tsi?
OXY-HB DISSOCIATION CURVE -> ib feem loj ntawm qhov sib txawv ntawm cov ntshav thiab cov roj alveolar thaum feem ntau cov pa tau raug xa mus (diffusion hastened). Nruab nrab, qis qis qis ntawm nkhaus . -> cov ntaub so ntswg peripheral tuaj yeem thim ntau O2 rau me me hauv PO2 (pab O2 diffusion rau hauv cov ntaub so ntswg).
Dab tsi ua rau hemoglobin tsis txaus rau oxygen?
Cov oxygen affinity ntawm hemoglobin txo qis raws li pH txo . Thaum nws mus txog cov leeg nqaij, qhov twg pH qis dua, qhov qis dua affinity rau oxygen tso cai hemoglobin tso nws oxygen rau hauv cov ntaub so ntswg. Thaum cov pa roj carbon dioxide nthuav mus rau hauv cov qe ntshav liab, nws qhov kev sib cais kuj tseem ua rau txo hauv pH.
Pom zoo:
Dab tsi yog sab xis sab xis ntawm lub plab?
Peb lub hlis twg tshaj plaws ntawm koj sab xis yog koj sab xis sab saud (RUQ). RUQ muaj ntau yam kabmob tseem ceeb, suav nrog ntu ntawm koj lub siab, lub raum sab xis, lub zais zis, txiav txiav, thiab hnyuv loj thiab me
Dab tsi ua rau oxyhemoglobin dissociation nkhaus hloov?
Kev nce siab ntxiv ntawm BPG hauv cov qe ntshav liab nyiam qhov tsim ntawm T, qis qis hauv lub xeev ntawm hemoglobin thiab yog li cov pa nkev-khi nkhaus yuav hloov mus rau sab xis
Qhov kev hloov pauv twg yuav ua rau hloov mus rau sab laug hauv cov pa oxygen hemoglobin khi 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 ntxwv uas hloov qhov nkhaus muaj xws li kev hloov pauv hauv cov pa roj carbon dioxide concentration, ntshav kub, ntshav pH, thiab cov concentration ntawm 2,3-diphosphoglycerate (2,3-DPG)
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
Dab tsi tuaj yeem ua rau mob sab xis sab xis?
Cov npe ntawm cov peev xwm ua rau mob sab xis sab xis yog qhov ntev: Cov kab mob qog noj ntshav. Cov kab mob cholangitis (cov kab mob hauv lub cev o) Diverticulitis. Fecal impaction (cov quav tawv uas tsis tuaj yeem raug tshem tawm) Gallbladder cancer. Kab mob siab. Mob plab (mob ntawm lub plab hauv plab) Kab mob siab (mob siab)