YVilli vs Microvilli
Kev nqus khoom noj hauv cov hnyuv yog qhov tseem ceeb heev rau kev txhawb nqa lub neej. Txhawm rau txhim kho qhov ua tau zoo ntawm cov txheej txheem no, lub cev nqaij daim tawv ntawm cov hnyuv me tau hloov kho kom nce qhov chaw ntawm qhov nqus. Tsis tas li ntawd, cov qauv zoo li microvilli tuaj yeem pom hauv qee qhov chaw ntawm lub cev, thiab. Kev hloov pauv loj ntawm thaj chaw luminal muaj xws li valvulae conniventes, villi, thiab microvilli. Tawm ntawm peb qhov no, villi pom tau zoo tshaj plaws thaum microvilli tuaj yeem pom los ntawm lub tshuab tsom.
Villi
Ntiv tes zoo li qhov pom pom nyob rau sab hauv ntawm txoj hnyuv me yog hu ua villi. Lawv yog tsim los ntawm folding lub mucosa ntawm cov hnyuv me nyob rau hauv thiaj li yuav ua rau kom lub nto ntawm cov khoom noj khoom haus haum. Tsis zoo li kev nqus khoom noj khoom haus, lawv kuj pab nqus cov zaub mov thiab electrolytes, thiab. Txhua villus muaj txhuam ciam teb cell txheej. Cov hlab ntsha me thiab cov hlab ntsha lymph txuas nrog rau txhua lub villus pab kev txav ntawm cov khoom mus thiab los ntawm cov hlab ntsha. Cov txheej txheej sab nrauv ntawm villi muaj cov qog hlwb uas tso cov enzymes digestive rau lumen. Villi muaj tsawg permeability rau passive diffusion.
YMicrovilli
Microvilli yog qhov kev kwv yees me me ntawm cov cell membranes uas nce thaj tsam ntawm cov hlwb. Lub luag haujlwm tseem ceeb ntawm microvilli yog nqus, zais cia, cellular adhesion, thiab mechanotransduction. Cov microvilli no tau teeb tsa los tsim cov qauv hu ua txhuam ciam teb. Microvilli muaj nyob rau hauv qee lub hlwb epithelial ntawm txoj hnyuv me, ntawm lub plasma ntawm cov qe, thiab ntawm cov qe ntshav dawb. Kev ua haujlwm ntawm lawv nyob ntawm qhov chaw uas lawv pom hauv lub cev. Piv txwv li, microvilli pom nyob rau hauv txoj hnyuv me ua rau kom qhov nqus ntawm qhov chaw, thaum microvilli pom ntawm lub qe pab thauj cov phev hlwb. Plasma membrane ua rau ciam teb ntawm microvilli thiab sab hauv yog ntim nrog cytoplasm. Txij li thaum microvilli yog cov qauv siv hauv microscopic, lawv tsis muaj cov cellular organelle hauv lawv. Txhua microvillus muaj ib pob ntawm cross-linked actin filaments, uas tsim cov qauv ntawm nws.
Villi thiab Microvilli txawv li cas?
• Villi loj dua microvilli.
• Villi muaj nyob rau ntawm cov ntaub so ntswg, whereas microvilli pom nyob rau hauv hlwb.
• Microvilli, tsis zoo li villi, yog cov qauv ntawm tes.
• Tsis zoo li hauv villi, core ntawm microvilli muaj cross-linked actin filaments.
• Villi thiab microvilli ob leeg pom muaj nyob rau hauv cov hnyuv me, qhov tsuas yog microvilli pom nyob rau saum npoo ntawm cov qe thiab cov qe ntshav dawb.
• Microvilli ua txhuam ciam teb, thaum villi tsis ua.
• Cov hlwb nrog microvilli pom nyob rau hauv txheej txheej sab nraud ntawm villi.
