Key Difference – Vein vs Venule
Cov hlab ntsha yog cov hlab ntsha uas nqa ntshav mus rau lub plawv. Nws ib txwm muaj ntshav siab. Tsuas yog cov hlab ntsws thiab cov hlab ntsha ntawm lub ntsws, tag nrho cov leeg leeg tseem nqa cov ntshav deoxygenated. Ntawm qhov tsis sib xws, cov hlab ntsha nqa cov ntshav tawm ntawm lub plawv. Cov hlab ntsha muaj li qub nyob rau hauv lawv los tiv thaiv cov ntshav dub thiab tswj cov ntshav unidirectional. Lawv tsis tshua muaj leeg, loj dua thiab nyob ze rau ntawm daim tawv nqaij. Venules yog cov leeg me me heev. Lawv yog cov uas sau cov ntshav los ntawm capillaries. Cov ntshav uas tau sau tseg yuav raug coj mus rau cov hlab ntsha loj thiab nruab nrab uas cov ntshav thauj mus rau lub plawv dua. Ntau lub venules sib sau ua cov leeg loj dua. Qhov sib txawv tseem ceeb ntawm Vein thiab Venule yog, cov hlab ntsha yog cov hlab ntsha loj uas nqa cov ntshav mus rau lub plawv thaum, lub venule yog cov hlab ntsha me me uas tso cov ntshav los ntawm cov hlab ntsha mus rau cov leeg.
Vim yog dab tsi?
Cov hlab ntsha yog cov hlab ntsha loj dua nyob thoob plaws hauv lub cev. Lub luag haujlwm tseem ceeb ntawm cov hlab ntsha yog nqa cov ntshav tsis muaj oxygen rov qab mus rau hauv lub plawv. Cov hlab ntsha tau muab faib ua qee yam xws li, cov hlab ntsha sab nraud, cov hlab ntsha pulmonary, cov leeg sib sib zog nqus, cov hlab ntsha perforator, sib txuas cov leeg thiab cov leeg leeg. Cov phab ntsa ntawm cov hlab ntsha yog thinner thiab tsawg elastic dua li phab ntsa ntawm cov hlab ntsha. Cov phab ntsa ntawm cov leeg muaj peb txheej ntawm cov ntaub so ntswg uas muaj npe hu ua tunica externa, tunica media, thiab tunica intima. Cov leeg kuj muaj cov lumen loj dua thiab tsis xwm yeem.
Cov hlab ntsha yog cov hlab ntsha uas tsis muaj ntshav siab. Cov hlab ntsha muaj ntau lub li qub los tiv thaiv cov ntshav dub mus rau cov hlab ntsha. Cov li qub no tswj cov ntshav unidirectional ntws mus rau lub plawv. Cov leeg yog translucent hauv qhov xwm txheej. Cov rog subcutaneous absorbs tsawg zaus lub teeb cia tsuas yog lub zog xiav wavelength uas nkag mus rau hauv cov hlab ntsha tsaus. Li no, lawv muaj xim xiav vim yog cov rog subcutaneous uas lawv muaj.
Daim duab 01: Vein
Thaum cov hlab ntsha tawm ntawm cov ntshav thiab tshem tawm ntawm ib yam kabmob, nws zoo li grey-dawb xim. Cov kab mob xws li venous insufficiency, sib sib zog nqus vein thrombosis, thiab portal hypertension yog txuam nrog defected leeg. Ultrasound thiab duplex ultrasound cov txheej txheem tuaj yeem siv los soj ntsuam cov leeg. Cov leeg muaj feem ntau ntawm cov ntshav nyob ib ncig ntawm 60% ntawm tag nrho cov ntshav cov ntsiab lus ntawm lub cev.
Vim yog dab tsi?
Cov venules yog cov hlab ntsha me heev uas koom nrog cov ntshav micro hauv lub cev. Lawv ntws cov ntshav los ntawm capillaries mus rau cov hlab ntsha loj dua li cov hlab ntsha. Venules yog 7 µm mus rau 1 mm nyob rau hauv lub cheeb. Venules muaj 25% ntawm cov ntshav los ntawm tag nrho cov ntshav cov ntsiab lus ntawm lub cev. Feem ntau, venules sib sau ua cov leeg. Lub postcapillary venules feem ntau koom nrog cov capillaries tawm ntawm lub txaj capillary. Cov phab ntsa ntawm cov venules muaj cov endothelium (squamous endothelial cells), nyias txheej nruab nrab nrog cov leeg hlwb thiab elastic fibers thiab ib txheej txheej ntawm cov ntaub so ntswg sib txuas.
Daim duab 02: Venules
Venules thiab capillaries yog thawj qhov chaw ntawm diapedesis. Lawv yog cov ntxeem tau heev uas tso cai rau cov ntshav txav tau yooj yim. High endothelial venules muaj lub endothelium ua los ntawm cov kab mob yooj yim cuboidal.
Dab tsi zoo sib xws ntawm Vein thiab Venule?
- Ob leeg yog ib feem ntawm cov hlab ntsha ntawm lub cev.
- Ob hom hlab ntsha muaj ntshav siab.
- Ob leeg thauj cov ntshav deoxygenated.
- Ob leeg muaj cov phab ntsa nyias.
Dab tsi yog qhov txawv ntawm Vein thiab Venule?
Vim vs Venule |
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| Vim yog cov hlab ntsha loj uas nqa ntshav mus rau lub plawv. | Venule yog ib feeb me me cov hlab ntsha uas tso cov ntshav ntawm cov hlab ntsha mus rau cov hlab ntsha loj dua. |
| Cov hlab ntsha loj dua thiab txoj kab uas hla yog ntsuas los ntawm millimeters. | Venule yog qhov me me thiab txoj kab uas hla yog ntsuas los ntawm micrometers. |
| Vim txoj hlab ntshav thauj ntshav mus rau lub plawv. | Venule tso ntshav tawm ntawm cov hlab ntsha mus rau cov hlab ntsha loj dua. |
| Tunica Externa hauv phab ntsa | |
| Vaj muaj lub dav tunica sab nraud ntawm phab ntsa. | Venule muaj nyias tunica externa ntawm phab ntsa. |
| Tunica Media hauv phab ntsa | |
| Vaj muaj dav tunica media rau ntawm phab ntsa. | Venule muaj ib lub tunica nyias nyias ntawm phab ntsa. |
Summary – Vein vs Venule
Cov hlab ntsha thiab venules yog ib feem ntawm cov hlab ntsha ntawm lub cev uas pab thauj cov ntshav rov qab mus rau lub plawv. Cov hlab ntsha yog cov hlab ntsha uas thauj cov ntshav mus rau lub plawv. Lawv thauj cov ntshav deoxygenated, tshwj tsis yog hauv cov hlab ntsws thiab cov hlab ntaws. Cov leeg muaj cov li qub uas tso cai rau cov ntshav ntws mus rau lub plawv, thiab lawv qhib tsuas yog thaum lawv nyem. Ntawm qhov tod tes, venules ntws cov ntshav los ntawm capillaries mus rau cov hlab ntsha loj. Venules yog cov hlab ntsha me me. Ntau lub venules sib sau ua ke los tsim cov leeg loj thiab nruab nrab. Ob leeg leeg thiab venules muaj cov phab ntsa nyias dua piv rau cov hlab ntsha. Qhov no yog qhov txawv ntawm cov hlab ntsha thiab venule.
Download the PDF Version of Vein vs Venule
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline lub hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv nruab nrab ntawm Vein thiab Venule
