Qhov sib txawv tseem ceeb ntawm mesoderm thiab mesenchyme yog tias mesoderm yog ib qho ntawm peb txheej kab mob ntawm ob sab symmetrical tsiaj thaum mesenchyme yog cov ntaub so ntswg tsis sib txawv pom hauv embryonic tseeb mesoderm.
Nyob hauv cov tsiaj diploblastic, lub cev txoj kev npaj yog qhov yooj yim nrog ob txheej ntawm cov hlwb. Ob txheej yog sab nrauv ectoderm thiab sab hauv endoderm. Cov hlwb ectoderm ntsib ib puag ncig, thiab cov hlwb endoderm ntsib cov enteron, uas yog kab noj hniav nrog ib qho qhib rau sab nraud. Qhov qhib yog lub qhov ncauj. Tsis tas li ntawd, triploblastic mob yog cov mob uas ib txheej peb hu ua mesoderm yog tsim nyob rau hauv lub embryo. Mesoderm nyob nruab nrab ntawm ectoderm thiab endoderm, cais ob txheej ntawm cov hlwb. Qhov thib peb txheej yog qhov tseem ceeb rau lub cev. Hauv qee cov tsiaj, ntau ntawm cov mesoderm tseem tsis muaj qhov sib txawv thiab tsim cov ntaub so ntswg hu ua mesenchyme, uas txhawb nqa thiab tiv thaiv cov kabmob ntawm lub cev.
Mesoderm yog dab tsi?
Mesoderm yog ib txheej ntawm cov hlwb uas cais ectoderm thiab endoderm ntawm triploblastic kab mob. Mesoderm pab cov tsiaj txhu triploblastic kom loj hlob tuaj. Ntxiv mus, nws pab cais cov kwj dej ntawm lub cev ntawm lub cev. Tsis tas li ntawd, mesoderm pab tsim ntau yam kabmob. Lub cev sib xyaw ua ke los tsim ib lub cev. Qee qhov piv txwv ntawm cov kab mob hauv nruab nrog cev muaj xws li hauv nruab nrab paj hlwb, digestive system, excretory system, reproductive system, thiab lwm yam.
Daim duab 01: Mesoderm
Tsis tas li ntawd, mesoderm kuj tseem pab txhim kho cov leeg nqaij ntawm cov kab mob triploblastic. Tsis tas li ntawd, nws yog qhov tsim nyog rau lawv txoj kev txav mus los vim kev txav ntawm ciliary lossis flagellar tsis txaus rau locomotion. Txawm hais tias muaj ntau qhov zoo vim yog kev hloov pauv ntawm mesoderm, muaj qee qhov tsis zoo. Mesoderm dhau los ua qhov cuam tshuam rau kev thauj khoom ntawm cov txheej txheem ectodermal thiab cov txheej txheem endodermal. Hauv qee cov tsiaj, mesoderm ua tiav qhov chaw ntawm ectoderm thiab endoderm thiab tus mob no hu ua acoelomate.
Mesenchyme yog dab tsi?
Mesenchyme, tseem hu ua mesenchymal connective cov ntaub so ntswg, yog ib hom ntawm cov ntaub so ntswg uas tsis muaj qhov sib txawv. Feem ntau cov ntaub so ntswg mesenchyme tuaj ntawm mesoderm. Tab sis qee qhov yuav muab tau los ntawm lwm cov kab mob xws li ectoderm vim lawv tau muab los ntawm cov hlwb neural crest. Li no, lo lus mesenchyme feem ntau yog siv rau cov hlwb tsim los ntawm mesoderm.
Daim duab 02: Mesenchyme
Mesenchymal hlwb muaj peev xwm txav tau yooj yim thaum lub hlwb epithelial tsis pom kev txav mus los ntau. Cov no yog polygonal zoo li lub hlwb nrog polarized apical-basal orientation. Mesenchyme muaj cov khoom tseem ceeb hauv av matrix uas muaj cov xoob xoob ntawm reticular fibrils thiab cov hlwb tsis tshwj xeeb. Cov hlwb no muaj peev xwm tsim tau rau hauv cov ntaub so ntswg sib txuas xws li pob txha, pob txha mos, lymphatic system, thiab cov hlab ntsha thaum xav tau.
Dab tsi yog qhov zoo sib xws ntawm Mesoderm thiab Mesenchyme?
- Mesenchyme muaj mesodermal keeb kwm. Hauv lwm lo lus, cov mesoderm tsim mesenchyme.
- Ob leeg ua rau muaj ntau hom kab mob sib txuas hauv lub cev tsiaj.
- Bsides, ob leeg muaj cov hlwb tsis txawv.
Qhov txawv ntawm Mesoderm thiab Mesenchyme yog dab tsi?
Mesoderm yog ib qho ntawm peb txheej kab mob ntawm ob sab symmetrical tsiaj thaum mesenchyme yog cov ntaub so ntswg uas tsis muaj qhov sib txawv pom hauv embryonic tseeb mesoderm. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm mesoderm thiab mesenchyme. Tsis tas li ntawd, mesoderm sib txawv rau hauv nruab nrab lub paj hlwb, digestive system, excretory system, reproductive system, thiab lwm yam, thaum mesenchyme txhim kho rau hauv cov ntaub so ntswg xws li pob txha, pob txha mos, lymphatic system thiab circulatory system..
Feem ntau, mesoderm tshwm tsuas yog thaum lub sij hawm embryonic. Tab sis mesenchyme tshwm nyob rau txhua theem ntawm cov tsiaj lub neej. Li no, qhov no kuj yog qhov txawv ntawm mesoderm thiab mesenchyme.
Summary – Mesoderm vs Mesenchyme
Mesoderm yog ib qho ntawm peb txheej kab mob ntawm lub embryo thaum ntxov. Nws yog txheej nruab nrab uas muaj cov cell loj. Tsis tas li ntawd, ob tog sib luag tsiaj muaj peb txheej kab mob nrog rau mesoderm. Mesoderm tsim feem ntau ntawm cov qauv hauv nruab nrab ntawm tus tsiaj lub cev nrog rau cov pob txha pob txha, cov leeg nqaij, cov kab mob, cov kab mob, excretory system, circulatory system, thiab lwm yam. cov ntaub so ntswg hauv lub cev. Tsis tas li ntawd, nws pib los ntawm mesoderm. Qhov tseeb, nws yog cov ntaub so ntswg tsis txawv nyob hauv embryonic tseeb mesoderm. Yog li, qhov no qhia txog qhov sib txawv ntawm mesoderm thiab mesenchyme.
