Qhov sib txawv tseem ceeb ntawm Haversian kwj dej thiab Volkmann tus kwj dej yog Haversian kwj dej yog lub hauv paus kwj dej ntawm osteon uas nqa cov hlab ntsha thiab cov hlab ntsha thaum Volkmann tus kwj dej yog cov kwj dej perforating uas txuas Haversian kwj dej nrog ib leeg thiab nrog periosteum.
Osteon lossis Haversian system yog cov qauv tsim ntawm cov pob txha pob txha. Nws yog cylindrical zoo li tus qauv thiab feem ntau muaj ob yam. Lawv yog concentric lamellae thiab Haversian kwj dej. Concentric lamellae puag ncig Haversian kwj dej. Yog li ntawd, Haversian kwj dej yog nyob rau hauv nruab nrab ntawm txhua osteon. Muaj lwm hom kwj dej hu ua Volkmann tus kwj dej hauv cov pob txha pob txha. Lawv yog cov perforating kwj dej. Ntxiv mus, lawv yog cov kwj dej me me uas cov pob txha xa cov hlab ntsha los ntawm sab nraud mus rau hauv Haversian kwj dej thiaj li sib txuas lus. Ntxiv mus, Volkmann cov kwj dej sib cuam tshuam Haversian kwj dej.
Haversian Canal yog dab tsi?
Haversian kwj dej yog lub hauv paus kwj dej ntawm osteon. Nws tso cai rau cov hlab ntsha, cov hlab ntsha thiab cov hlab ntsha mus los ntawm nws. Nyob rau hauv ib tug Haversian kwj dej, ib los yog ob tug capillaries thiab paj hlwb tuaj yeem pom. Feem ntau, cov pob txha pob txha muaj ntau Haversian kwj dej uas khiav los ntawm txhua qhov osteon. Lawv yeej yog cov raj microscopic.
Daim duab 01: Haversian Canal
Cov hlab ntsha hauv Haversian kwj dej txhawb nqa cov osteocytes. Yog li ntawd, cov hlab ntsha hauv cov kav dej Haversian coj cov pa oxygen thiab cov as-ham rau cov pob txha thiab tshem tawm cov khib nyiab. Tsis tas li ntawd, Haversian kwj dej khiav raws qhov ntev ntawm Haversian system. Yog li ntawd, nyob rau hauv ib tug ntoo khaub lig-section ntawm ib tug pob txha, nws zoo nkaus li lub qhov nyob rau hauv concentric lamellae.
Volkmann's Canal yog dab tsi?
Volkmann cov kwj dej, tseem hu ua perforating channel, yog cov ceg ntoo hla ntawm Haversian kwj dej. Yog li, cov kwj dej no qhia txog kev hloov pauv hauv cov pob txha. Lawv yog cov kwj dej me me uas txuas nrog Haversian kwj dej nrog ib leeg. Tsis tas li ntawd, cov kwj dej no txuas Haversian kwj dej nrog periosteum thiab xa cov hlab ntsha ntawm periosteum mus rau pob txha.
Daim duab 02: Volkmann's Canal
Ntxiv mus, Volkmann cov kwj dej txuas cov osteons nyob ib sab ntawm cov pob txha pob txha. Zoo ib yam li Haversian kwj dej, Volkmann cov kwj dej kuj muab lub zog thiab kev noj haus rau cov osteons.
Dab tsi zoo sib xws ntawm Haversian Canal thiab Volkmann's Canal?
- Haversian kwj dej thiab Volkmann kwj dej yog ob hom kwj dej uas pom hauv cov pob txha pob txha.
- Ob leeg cia cov hlab ntsha thiab paj hlwb taug kev los ntawm lawv.
- Volkmann cov kwj dej sib cuam tshuam Haversian kwj dej nrog ib leeg thiab nrog cov pob txha sab nraud.
- Ob hom kwj dej muab khoom noj rau cov osteons.
Dab tsi yog qhov txawv ntawm Haversian Canal thiab Volkmann's Canal?
Haversian kwj dej yog lub hauv paus kwj dej ntawm ib qho osteon uas tso cai rau cov hlab ntsha, cov hlab ntsha thiab cov hlab ntsha mus raws cov osteon. Nyob rau hauv sib piv, Volkmann tus kwj dej yog ib tug transverse ceg ntawm Haversian kwj dej uas interconnects Haversian kwj dej nrog ib leeg thiab nrog lub periosteum. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm Haversian kwj dej thiab Volkmann tus kwj dej. Tsis tas li ntawd, Haversian kwj dej qhia tau hais tias qhov ntev ntawm kev taw qhia thaum Volkmann tus kwj dej qhia txog kev hloov pauv.
Cov hauv qab no qhia txog qhov sib txawv ntawm Haversian kwj dej thiab Volkmann tus kwj dej.
Summary – Haversian Canal vs Volkmann's Canal
Haversian kwj dej yog lub hauv paus kwj dej ntawm osteon. Nws muaj cov hlab ntsha, lymph hlab ntsha thiab cov hlab ntsha. Cov hlab ntsha ntawm Haversian kwj dej muab khoom noj thiab txhawb cov osteocytes. Nyob rau hauv sib piv, Volkmann tus kwj dej yog ib tug transverse ceg ntawm Haversian kwj dej. Cov kwj dej no cuam tshuam cov kwj dej Haversian thiab tseem coj cov hlab ntsha ntawm periosteum mus rau Haversian kwj dej. Haversian kwj dej khiav longitudinally nyob rau hauv Haversian system thaum Volkmann cov kwj dej khiav nyob rau hauv ib tug transverse orientation. Ob lub kwj dej tso cai rau cov hlab ntsha thiab cov hlab ntsha mus ncig; yog li ntawd, lawv muab lub zog thiab cov as-ham rau cov pob txha. Qhov no qhia txog qhov sib txawv ntawm Haversian kwj dej thiab Volkmann tus kwj dej.
