Cov kwj dej alimentary txawv ntawm txoj hnyuv li cas?

Cov txheej txheem:

Cov kwj dej alimentary txawv ntawm txoj hnyuv li cas?
Cov kwj dej alimentary txawv ntawm txoj hnyuv li cas?
Anonim

Lub plab zom mov yog tsim los ntawm cov kwj dej alimentary (tseem hu ua lub plab zom mov) thiab lwm yam kabmob, xws li daim siab thiab txiav. Lub kwj dej yog lub raj ntev ntawm cov kabmob - nrog rau txoj hlab pas, plab, thiab cov hnyuv - uas khiav ntawm lub qhov ncauj mus rau qhov quav.

Dab tsi yog qhov txawv ntawm plab thiab plab zom mov?

Nws lub luag haujlwm tseem ceeb yog txhawm rau zom cov zaub mov koj noj. Lwm lub luag haujlwm tseem ceeb ntawm lub plab yog khaws cov zaub mov kom txog thaum lub plab zom mov (lub plab) npaj tau txais nws. Koj tuaj yeem noj zaub mov sai dua li koj cov hnyuv zom tau. Kev zom zaub mov suav nrog kev rhuav tshem cov zaub mov rau hauv nws qhov tseem ceeb tshaj plaws.

Lub luag haujlwm ntawm lub kwj dej hauv plab zom mov yog dab tsi?

Cov kwj dej hauv lub cev yog ib feem tseem ceeb ntawm txoj hnyuv. Nws yog ib tug nruam muscular raj uas khiav los ntawm lub cev thiab nws yog nyob ib ncig ntawm 8 mus rau 10 meters ntev. … Lub kwj dej alimentary ua txoj haujlwm ntawm kev zom zaub mov. Nws lov nws mus rau tej daim me me thiab pab nyob rau hauv kev nqus ntawm cov zaub mov digested.

Dab tsi yog qhov txawv ntawm kev zom thiab peristalsis?

Mechanical digestion pib hauv koj lub qhov ncauj nrog zom, ces txav mus rau churning hauv plab thiab segmentation hauv cov hnyuv. Peristalsis kuj yog ib feem ntawm kev zom zaub mov.

Kev ua haujlwm ntawm peristalsis hauv plab yog dab tsi?

Hloov pauv thiab so ntawm cov leeg no hu ua peristalsis. Perist altic nthwv dej thawb tus nqos bolus mus rau hauv txoj hlab pas. Nyob rau hauv lub plab, peristalsis churns nqos cov zaub mov, sib tov nws nrog kua txiv hmab txiv ntoo. Cov khoom siv kho tshuab thiab tshuaj lom neeg no ntxiv zom cov zaub mov rau hauv cov khoom hu ua chyme.

Pom zoo:

Nthuav cov khoom
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Johnson Tsang thawj zaug kawm ua qauv av nplaum hauv xyoo 1991, thaum nws ua haujlwm kaum peb xyoos ua tub ceev xwm. Tam sim no 58 xyoo, Tsang yog tus tus tsim cov duab puab ntawm lub ntsej muaguas tau ncab thiab qhib rau hauv txoj kev surreal thiab uas thawb ciam teb ntawm kev muaj tiag.

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