Qhov Tseem Ceeb Qhov txawv - Chondrocytes vs Osteocytes
Cov ntaub so ntswg sib txuas tau koom nrog hauv kev sib txuas thiab sib cais ntawm ntau hom ntaub so ntswg thiab lub cev thiab txhawb nqa lawv. Nws raug suav hais tias yog ib qho ntawm plaub hom ntaub so ntswg tam sim no nyob rau hauv lub neej. Tawm ntawm ntau hom kev sib txuas, cov pob txha thiab pob txha mos yog ob qhov tseem ceeb ntawm cov ntaub so ntswg uas hais txog cov duab thiab kev txav ntawm cov kab mob. Cov pob txha yog cov qauv nyuaj uas tsim cov txheej txheem ntawm lub cev thaum cov pob txha mos tsis nruj thiab muaj nyob rau hauv cov cheeb tsam xws li pob ntseg, qhov ntswg thiab pob qij txha (qhov kawg ntawm cov pob txha). Chondrocytes koom nrog hauv kev saib xyuas cov pob txha mos thiab osteocytes koom nrog kev saib xyuas cov pob txha. Qhov no yog qhov sib txawv tseem ceeb ntawm Chondrocytes thiab Osteocytes.
Osteocytes yog dab tsi?
Osteocytes yog ib hom pob txha hlwb uas muaj nyob hauv cov pob txha loj. Osteocytes yog tsim nyob rau hauv cov ntaub so ntswg mucoid. Qhov loj ntawm lub cev ntawm lub cev ntawm osteocyte yuav txawv ntawm 5-20 micrometers inch. Ib tug laus osteocyte muaj ib tug nucleus uas nyob rau ntawm lub vascular sab thiab ib los yog ob nucleoli tej zaum yuav tshwm sim nrog rau ib daim nyias nyias. Osteocyte muaj qhov txo qis endoplasmic reticulum, mitochondria thiab Golgi apparatus thiab cov txheej txheem ntawm tes uas tawm mus rau matrix.
Daim duab 01: Osteocytes
Muaj kwv yees li 42 billion osteocytes hauv tib neeg lub cev. Cov hlwb no muaj qhov nruab nrab ib nrab-lub neej ntawm 25 xyoo. Osteocytes tsis faib tab sis, lawv tau muab los ntawm osteoprogenitors. Cov osteoprogenitors tom qab no tuaj yeem sib txawv rau hauv osteoblasts nquag. Cov osteocytes nyob hauv qhov chaw hu ua lacunae thiab cov hlwb hauv cov theem tsim muaj nyob hauv canaliculi. Thaum cov osteoblasts nyob rau hauv lub matrix, lawv loj hlob mus rau hauv osteocytes. Osteocytes yog interconnected thiab networked rau ib leeg los ntawm ntev cytoplasmic extensions. Osteocytes tau hais tias tsis muaj zog thaum piv rau lwm cov hlwb hauv lub cev. Lawv muaj peev xwm nqa tawm molecular synthesis, hloov kho, thiab nyob deb ntawm cov teeb liab kis tau tus mob; Yog li, lawv cov dej num zoo ib yam li lub paj hlwb. Feem ntau ntawm cov haujlwm tseem ceeb hauv cov pob txha muaj nuj nqi yog ua nyob rau hauv cov laus osteocytes. Osteocytes raug suav hais tias yog tus tswj hwm ntawm cov pob txha loj thiab tus tswj hwm endocrine ntawm phosphate metabolism. Osteocyte tuag yog tshwm sim los ntawm necrosis, senescence, apoptosis los yog engulfment ntawm osteoclasts. Yog li, kev puas tsuaj osteocyte tuaj yeem ua rau osteoporosis.
Chondrocytes yog dab tsi?
Chondrocytes yog tib lub hlwb uas muaj nyob hauv cov pob txha noj qab haus huv. Cartilaginous matrix yog tsim thiab tswj los ntawm chondrocytes. Collagen fibers thiab proteoglycans feem ntau nyob hauv matrix. Chondroblasts uas tseem hu ua mesenchymal progenitor hlwb tsim chondrocytes los ntawm endochondral ossification.
Muaj 4 lub ntsiab chondrocytic kab. Los ntawm qhov tsawg tshaj plaws- mus rau qhov kawg-qhov sib txawv, cov kab mob chondrocytic yog:
- Colony forming unit-fibroblast (CFU-F)
- Mesenchymal qia cell/marrow stromal cell (MSC)
- Chondrocyte
- Hypertrophic chondrocyte
Daim duab 02: Chondrocytes
Cov qia hlwb Mesenchymal muaj peev xwm sib txawv rau hauv ntau lub hlwb uas hu ua osteochondrogenic hlwb. Thaum pib, thaum qhov no tshwm sim hauv mesenchymal qia hlwb, lawv poob lawv lub peev xwm los sib txawv rau hauv ib qho ntawm peb txheej kab mob: endoderm, mesoderm lossis ectoderm. Tom qab ntawd cov chondrocytes pib proliferate thiab densely aggregate qhov twg cov txheej txheem chondrification tshwm sim. Cov chondrocytes uas txawv rau chondroblasts ua rau cov cartilaginous extracellular matrix. Ntawm no, lub chondroblast yog ib tug paub tab chondrocyte uas yog inactive tab sis tseem muaj peev xwm rau secretion thiab degradation ntawm lub matrix nyob rau hauv txawv tej yam kev mob. Thaum cov chondrocyte dhau los ua hypertrophic (nce qhov ntim ntawm cov ntaub so ntswg los yog lub cev los ntawm qhov loj ntawm cov khoom siv hlwb), lawv mus txog qhov sib txawv ntawm qhov sib txawv uas tshwm sim thaum lub sij hawm endochondral ossification.
Dab tsi zoo sib xws ntawm Chondrocytes thiab Osteocytes?
- Ob leeg osteocytes thiab chondrocytes yog los ntawm mesenchymal qia hlwb.
- Ob hom no pab lub cev kom rov zoo ntawm cov pob txha pob txha.
- Ob lub hlwb muaj peev xwm siv tau rau pob txha pob txha engineering.
Qhov txawv ntawm Chondrocytes thiab Osteocytes yog dab tsi?
Chondrocytes vs Osteocytes |
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| Osteocytes yog ib hom pob txha hlwb uas muaj nyob rau hauv cov pob txha laus. | Chondrocytes yog ib hom hlwb uas muaj nyob rau hauv cov pob txha noj qab haus huv |
| Osteocytes koom nrog kev saib xyuas cov pob txha. | Chondrocytes koom nrog kev saib xyuas pob txha mos. |
Summary – Chondrocytes vs Osteocytes
Cov pob txha mos thiab pob txha raug suav tias yog ob yam tseem ceeb ntawm cov ntaub so ntswg sib txuas. Osteocytes thiab chondrocytes yog cov hlwb ntawm cov pob txha thiab pob txha mos, feem. Lawv tsim los ntawm mesenchymal hlwb. Osteocytes yog tsim nyob rau hauv mucoid connective cov ntaub so ntswg thiab cov laus osteocyte muaj ib tug nucleus. Chondrocytes koom nrog hauv kev saib xyuas pob txha mos. Cartilaginous matrix yog tsim thiab tswj los ntawm chondrocytes. Osteocytes koom nrog hauv kev saib xyuas cov pob txha. Qhov no yog qhov txawv ntawm Chondrocytes thiab Osteocytes.
Download PDF Version of Chondrocytes vs Osteocytes
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li cov ntawv sau tseg. Thov download PDF version ntawm no Qhov txawv Ntawm Chondrocytes thiab Osteocytes
