Qhov sib txawv tseem ceeb ntawm cov kua hauv lub cev thiab cov kua dej ntxiv yog cov kua hauv lub cev yog cov kua hauv lub cev, thaum cov kua dej sab nraud ntawm tes yog cov kua dej ntxiv.
Ib lub xovtooj yog lub hauv paus txheej txheem thiab kev ua haujlwm ntawm lub neej. Lub cell membrane ncig lub cell, cais cov cell sab hauv thiab sab nraud ib puag ncig. Ob lub xovtooj ntawm sab hauv thiab sab nrauv yuav tsum nyob rau hauv cov xwm txheej zoo tshaj plaws txhawm rau ua nws txoj haujlwm ntawm qib zoo. Yog li ntawd, qhov sib xyaw ntawm intracellular thiab extracellular kua yog qhov tseem ceeb heev hauv qhov no. Yog li ntawd, nws yuav yog ib qho tseem ceeb rau kev tshawb nrhiav sab hauv thiab sab nrauv ntawm cov hlwb.
Dab tsi yog Intracellular Fluids?
Intracellular kua, tseem hu ua cytosol lossis cytoplasmic matrix, yog cov kua uas muaj ntau yam khoom los xyuas kom muaj kev saib xyuas zoo ntawm cov txheej txheem ntawm tes. Intracellular kua yog tam sim no tsuas yog nyob rau hauv lub sab hauv ntawm lub cell, thiab lub cell membrane yog nws ciam teb. Lub membranes ntawm organelles cais cytosol los ntawm matrices ntawm organelles. Muaj ntau txoj hauv kev metabolic tshwm sim hauv cov kua dej hauv lub cev hauv ob qho tib si prokaryotes thiab eukaryotes. Txawm li cas los xij, txoj hauv kev eukaryotic metabolic muaj ntau dua hauv cov organelles dua li hauv cytosol.
Daim duab 01: Cytoplasm
Cov kua dej hauv lub cev yog qhov tseem ceeb kom paub tias nws muaj feem ntau cov dej nrog qee cov ions xws li sodium, potassium, chloride, thiab, magnesium. Vim muaj cov amino acids, dej-soluble proteins, thiab lwm yam molecules, cytosol muaj ntau yam khoom. Txawm hais tias tsis muaj daim nyias nyias los txheeb xyuas cov ntsiab lus ntawm cytosol, muaj qee qhov kev txwv ntawm cov kua dej hauv lub cev uas tshwm sim los ntawm cov concentration gradients, protein complexes, cytoskeletal sieving, thiab protein compartments.
Nws yog ib qho tseem ceeb uas yuav tsum tau pom tias cytoskeleton tsis yog ib feem ntawm cov kua hauv lub cev, tab sis nws cov qauv ua rau qee cov molecules loj rau hauv qee qhov chaw. Cov kua dej intracellular tsis ua lub luag haujlwm tshwj xeeb, tab sis nws pab ntau yam haujlwm suav nrog cov teeb liab hloov hauv cov organelles, muab qhov chaw rau cytokinesis thiab protein synthesis, kev thauj mus los ntawm cov molecules, thiab ntau lwm yam.
Dab tsi yog Extracellular Fluids?
Extracellular yog cov kua dej nyob sab nraud ntawm lub hlwb. Hauv lwm lo lus, cov kua dej extracellular yog cov kua hauv lub cev uas nyob ib puag ncig cov hlwb thiab cov ntaub so ntswg. Extracellular kua muab cov as-ham uas xav tau thiab lwm yam tshuaj ntxiv rau cov cell membrane-bound. Nws feem ntau muaj sodium, potassium, calcium, chlorides, thiab bicarbonates. Txawm li cas los xij, muaj cov proteins tsawg heev hauv cov kua dej ntxiv. Lub pH ntawm cov kua dej extracellular yog nyob ib ncig ntawm 7.4, thiab cov kua dej no muaj lub peev xwm buffering rau ib qho kev txiav txim siab, ib yam nkaus.
Daim duab 02: Extracellular Fluid
Qhov muaj cov piam thaj hauv cov kua dej ntxiv yog qhov tseem ceeb hauv kev tswj hwm homeostasis nrog cov hlwb, thiab cov piam thaj ib txwm nyob hauv tib neeg yog tsib zeb molars (5 mM). Feem ntau, muaj ob yam tseem ceeb ntawm cov kua dej extracellular hu ua interstitial kua thiab ntshav plasma. Tag nrho cov kev sib tham no yog cov khoom tseem ceeb thiab cov ntsiab lus ntawm cov kua nruab nrab, uas yog kwv yees li 12 litres hauv tib neeg loj hlob. Tag nrho cov ntshav plasma yog kwv yees li peb litres hauv tib neeg.
Dab tsi zoo sib xws ntawm Intracellular thiab Extracellular Fluids?
- Qhov thaiv ntawm cov kua dej hauv lub cev thiab cov kua dej tawm sab nraud yog lub cell membrane.
- Cov kua dej thiab cov molecules taug kev ntawm cov kua hauv lub cev thiab cov kua dej ntxiv.
- Qib ntawm osmotic siab nyob twj ywm kwv yees li ntawm qhov sib npaug ntawm cov kua dej hauv lub cev thiab cov kua dej ntxiv.
- Ob lub kua dej yog tsim los ntawm dej.
- Glucose muaj nyob rau hauv ob lub kua.
Qhov txawv ntawm Intracellular thiab Extracellular Fluids yog dab tsi?
Intracellular kua yog cov kua tam sim no nyob rau hauv lub hlwb thaum cov kua extracellular yog cov kua uas nyob sab nraum lub hlwb. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm cov kua dej intracellular thiab extracellular. Intracellular kua tso nyiaj rau ntau dua ntawm cov kua ntim tag nrho thaum cov kua dej extracellular account rau ib feem me me ntawm tag nrho cov kua. Qhov no kuj yog qhov sib txawv ntawm cov kua dej intracellular thiab extracellular. Intracellular kua muaj proteins thiab amino acids. Tab sis, cov kua dej extracellular tsis muaj cov proteins thiab cov amino acids. Li no, qhov no yog lwm qhov sib txawv loj ntawm cov kua dej hauv lub cev thiab cov kua dej ntxiv.
Cov hauv qab no infographic qhia txog qhov sib txawv ntawm cov kua hauv lub cev thiab cov kua nruab nrog cev sib piv.
Summary – Intracellular vs Extracellular Fluids
Intracellular thiab extracellular kua yog ob hom kua uas muaj nyob rau hauv cov kab mob nyob. Intracellular kua muaj nyob rau hauv lub hlwb thaum cov kua dej extracellular muaj nyob sab nraum lub hlwb. Qhov no yog qhov sib txawv tseem ceeb ntawm cov kua dej intracellular thiab extracellular. Cov kua dej hauv lub cev thiab cov kua dej tawm sab nraud muaj cov dej ntau dua.
