Cov kua dej txuas nrog ntshav thiab qog ntshav yog cov kua dej sib txuas. Cells circulate nyob rau hauv cov kua extracellular matrix.
Cov ntaub so ntswg hom twg yog cov kua dej?
ntshav yog cov kua dej sib txuas. Ntshav muaj ob yam: hlwb thiab kua matrix (Daim duab 4.13). Erythrocytes, qe ntshav liab, thauj oxygen thiab qee cov pa roj carbon dioxide. Leukocytes, cov qe ntshav dawb, muaj lub luag haujlwm tiv thaiv cov kab mob uas ua rau muaj kev phom sij lossis cov molecules.
Dab tsi yog cov kua dej sib txuas ntau tshaj plaws?
Ntshavyog cov kua dej sib txuas, ntau lub hlwb tshwj xeeb uas ncig hauv cov kua dej uas muaj cov ntsev, cov as-ham, thiab cov protein uas yaj hauv cov kua dej ntxiv. Ntshav muaj cov khoom tsim los ntawm cov pob txha.
Yuav ua li cas cov ntaub so ntswg muab cais ua?
Cov ntaub so ntswg sib txuas yog cais raws li fiber ntau ntom thiab kev taw qhia. Peb hom kev sib txuas ntawm cov ntaub ntawv sib txuas muaj nyob hauv tib neeg lub cev yog (1) ntom tsis tu ncua, (2) tuab ib txwm muaj:, thiab (lub rooj 2-1).
Cov piv txwv ntawm cov ntaub so ntswg yog dab tsi?
Cov ntaub so ntswg sib txuas kuj khaws cov rog, pab txav cov as-ham thiab lwm yam khoom nruab nrab ntawm cov ntaub so ntswg thiab lub cev, thiab pab kho cov ntaub so ntswg puas. Cov ntaub so ntswg sib txuas yog tsim los ntawm cov hlwb, fibers, thiab cov khoom zoo li gel. Cov ntaub so ntswg sib txuas suav nrog pob txha, pob txha mos, rog, ntshav, thiab cov ntaub so ntswg
