Capillaries yog cov hlab ntsha me tshaj plaws hauv lub cev. Cov qauv ntawm capillaries muaj tsuas yog ib txheej ntawm endothelial hlwb. Yog li no, capillaries tsis muaj li qub.
Puas capillaries muaj li qub lawm los yog tsis?
Capillaries txuas cov hlab ntsha mus rau cov leeg. … Lawv zoo ib yam li cov hlab ntsha tab sis tsis muaj zog lossis tuab. Tsis zoo li cov hlab ntsha, cov leeg muaj cov li qub uas ua kom cov ntshav ntws hauv ib qho kev taw qhia xwb. (Cov hlab ntsha tsis xav tau li qubvim tias lub siab los ntawm lub plawv muaj zog heev uas cov ntshav tsuas tuaj yeem ntws mus rau hauv ib qho kev coj.)
Dab tsi li qub nyob hauv capillaries?
Capillary li qub yog passive tsis yog tshuab li qub uas ua haujlwm los ntawm qhov nro los thaiv lossis txwv tsis pub ntws hauv cov channel. Tsis zoo li Pneumatic li qub, capillary li qub ua haujlwm los ntawm tsis muaj qhov txav. Cov li qub no tau dhau los ua qhov tseem ceeb heev nrog kev sib koom ua ke ntawm daim ntawv microfluidics hauv ntau daim ntawv thov tus nqi qis.
Puas capillaries muaj sphincters?
Cov ntshav nkag mus rau qee lub txaj capillary yog tswj los ntawm cov leeg me hu ua precapillary sphincters.
ob hom kab mob yog dab tsi?
Puas muaj ntau hom kab mob?
- Nruam capillaries. Cov no yog cov feem ntau hom capillaries. …
- Fenestrated capillaries. Fenestrated capillaries yog "leaker" dua li txuas ntxiv capillaries. …
- Sinusoid capillaries. Cov no yog cov rarest thiab"leakest" hom capillary.
