Key Difference – Lamellae vs Lacunae
Lub cev pob txha tsim cov txheej txheem ntawm lub cev thiab muab cov duab thiab qauv rau lub cev. Lub cev pob txha kuj tseem koom nrog hauv kev muab kev tiv thaiv rau qee lub cev tseem ceeb xws li lub plawv, lub ntsws thiab lub siab. Lub cev pob txha yog tsim los ntawm cov pob txha tsim los ntawm ntau hom kev sib txuas. Cov pob txha cov ntaub so ntswg yog cais raws li cov pob txha compact thiab spongy pob txha. Qhov kev faib tawm no yog nyob ntawm lub koom haum ntawm cov pob txha matrix thiab cov hlwb. Cov pob txha compact tsim txheej txheej ntawm cov pob txha feem ntau thiab muab kev tiv thaiv thiab kev txhawb nqa. Lub luag haujlwm tseem ceeb ntawm cov pob txha pob txha yog osteon. Lub osteon yog tsim los ntawm 4 yam sib txawv. Lawv yog Harvesian kwj dej, Lamellae, Lacunae thiab canaliculi. Cov lamellae yog lub voj voog nyob ib ncig ntawm Haversian kwj dej; Lawv yog cov pob txha matrix tsim los ntawm calcium, phosphorus ntsev thiab fibers. Lub lacunae yog qhov chaw me me hauv lamellae uas muab thaj chaw rau cov pob txha hlwb lossis osteocytes. Qhov no yog qhov txawv ntawm lamellae thiab lacunae.
Lamellae yog dab tsi?
Lub lamella ntawm cov pob txha muab cov fibrillar matrix ntawm cov pob txha. Lub lamella yog tsim los ntawm ntau cov pob ntawm fibrils. Cov fibrils no tau teem rau hauv lub voj voog nyob hauv tib lub dav hlau nyob ib ncig ntawm Haversian kwj dej. Lamellae tau txais cov ntshav zoo ntawm Haversian kwj dej. Lamellae tau teem caij sib luag rau ib leeg thiab muaj qhov sib txawv. Lawv yog cov nplua nuj nyob rau hauv collagen fibers. Cov fiber ntau ntawm lamellae qis dua ntawm ciam teb, thiab cov ntaub so ntswg zoo li cov qauv lamellar nyob rau hauv lub microscope. Lub thickness ntawm lamellae yog heev varied los ntawm taw tes rau taw tes. Lamellae yog teem rau hauv ib ncig, sab nraud ncig thiab interstitial lamellae.
Lamellae tuaj yeem faib ua homogenous lamellae lossis striated lamellae. Ob hom lamellae no tau pom nyob rau hauv longitudinal thiab transverse seem ntawm cov pob txha. Lub striated lamellae yog ib qho tshwm sim ntawm kev hla ntawm cov ntaub so ntswg me me uas nyob nruab nrab ntawm cov homogenous lamellae faib rau hauv cov pob txha matrix.
Daim duab 01: Tus qauv ntawm pob txha pob txha
Matrix feem ntau yog tsim los ntawm fibers thiab ntxhia ntsev. Mineral ntsev uas nyob rau hauv cov pob txha lamellae feem ntau suav nrog cov ntsev ntawm calcium thiab phosphate. Cov calcium thiab phosphate ntsev no yog siv rau hauv cov pob txha mineralization txheej txheem ntawm pob txha tsim. Cov ntsev no hauv cov matrix pab tswj cov pob txha rigidity thiab lub zog.
Lacunae yog dab tsi?
Lacunae yog qhov chaw me me lossis qhov hauv lamellae uas tsev osteocytes. Osteocytes yog encased nyob rau hauv cov me me lacunae. Cov cellular, cytoplasmic extensions ntawm osteocytes hu ua canaliculi txuas cov osteocyte nrog cov pob txha matrix. Cov canaliculi pab txhawb kev hloov ntawm cov khoom xws li cov as-ham thiab cov khoom pov tseg los ntawm osteocytes mus rau sab nraud ib puag ncig ntawm kev nthuav dav.
Daim duab 02: Lacunae
Osteocytes muaj peev xwm ntawm pob txha deposition thiab resorption. Kev kho pob txha kuj tseem pib los ntawm osteocytes. Osteocytes xa cov cim los ntawm ib qho osteocyte mus rau lwm qhov hauv kev teb rau cov pob txha deformations. Osteocyte muaj peev xwm ntawm pob txha deposition thiab resorption. Nws kuj tseem koom nrog kev kho pob txha los ntawm kev xa cov cim rau lwm cov osteocytes hauv kev teb rau cov pob txha me me. Osteocytes kuj pab hauv calcium homeostasis.
Dab tsi yog qhov zoo sib xws ntawm Lamellae thiab Lacunae?
- Lamellae thiab Lacunae tsim Haversian system lossis osteon hauv cov pob txha.
- Ob leeg txuas nrog canaliculi.
- Ob leeg yog cov qauv siv tshuab.
Qhov txawv ntawm Lamellae thiab Lacunae yog dab tsi?
Lamellae vs Lacunae |
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| Lamalla yog fibrillar matrix ntawm cov pob txha. | Lacunae yog qhov chaw me me hauv lamellae. |
| Lamellae ua raws li cov matrix ntawm cov pob txha compact. | Lacunae ua raws li lub qhov rooj lossis qhov chaw khoob rau osteocytes lossis pob txha hlwb. |
| Cov ntsiab lus ntawm lamellae yog ntsev ntawm calcium, phosphate thiab fibers (tsuas yog collagen). | Lacunae yog qhov chaw khoob, thiab canaliculi tshwm sim los ntawm osteocytes hauv lacunae. |
| Lamellae tau teeb tsa raws li lub voj voog nyob ib ncig ntawm Haversian kwj dej. | Lacunae tsis tu ncua hauv matrix. |
| Striations muaj nyob rau hauv lamellae. | Striations are absent in lacunae. |
Summary – Lamellae vs Lacunae
pob txha yog cov ntaub so ntswg tshwj xeeb thiab tseem ceeb hauv kev txhawb nqa thiab lub zog rau lub cev thiab lub cev. Cov pob txha pob txha yog tsim los ntawm cov haujlwm ua haujlwm hu ua Haversian systems lossis osteons thiab lacunae, thiab lamellae yog ob qho tseem ceeb tshaj plaws nyob rau hauv osteon. Lamellae yog cov fibrillar network lossis matrix ntawm osteon whereas lacunae dais cov pob txha hlwb hauv nws. Qhov no yog qhov txawv ntawm lamellae thiab lacunae.
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Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov download PDF version ntawm no Qhov txawv Ntawm Lamellae thiab Lacunae
