Cov hlab ntsha vs leeg
Cov hlab ntsha thiab cov hlab ntsha yog ib feem ntawm cov hlab ntsha. Lub luag haujlwm ntawm cov hlab ntsha yog nqa cov ntshav oxygenated los ntawm lub plawv mus rau tag nrho lub cev, tshwj tsis yog cov hlab ntsws thiab cov hlab ntsha uas nqa cov ntshav deoxygenated los ntawm lub plawv mus rau lub ntsws. Txawm li cas los xij, txoj haujlwm ntawm cov hlab ntsha yog nqa cov ntshav deoxygenated mus rau lub plawv los ntawm lub cev tag nrho nrog rau cov hlab ntsws thiab cov hlab ntaws uas nqa cov ntshav oxygenated los ntawm lub ntsws mus rau lub plawv.
Cov hlab ntsha tseem ceeb yog xa cov pa oxygen thiab cov as-ham rau tag nrho lub cev. Lawv kuj yuav tsum tau tshem tawm cov pa roj carbon dioxide, lwm yam khoom pov tseg los ntawm cov ntaub so ntswg thiab hlwb, tswj cov tshuaj sib npaug, kev txav mus los ntawm cov protein, hlwb thiab lwm yam hauv lub cev. Cov hlab ntsha tau muab faib ua cov hlab ntsws, pulmonary, aorta, thiab arterioles. Cov hlab ntsha yog tuab thiab cov leeg vim nws yuav tsum tau ris lub zog uas lub plawv tso cov ntshav mus rau hauv nws. Cov hlab ntsha ntxiv faib ua me me tubules. Cov txheej txheej sab nrauv yog tsim los ntawm cov ntaub so ntswg uas npog nruab nrab ntawm cov nqaij mos. Cov ntaub so ntswg sib cog lus nyob nruab nrab ntawm lub plawv dhia ua rau lub plawv dhia. Cov txheej sab hauv tshaj plaws yog cov hlwb endothelial uas pab ua kom cov ntshav ntws zoo.
Vim
Cov hlab ntsha nqa cov ntshav deoxygenated los ntawm cov ntaub so ntswg rov qab mus rau lub plawv. Lawv yog elastic thiab tubular tsim thiab tsis yog tuab thiab ruaj khov li cov hlab ntsha. Cov leeg yog cais raws li Superficial, Deep, Pulmonary thiab Systemic veins. Cov hlab ntsha sab nraud yog nyob ze rau saum npoo ntawm daim tawv nqaij thiab tsis muaj cov hlab ntsha sib txuas, cov hlab ntsha sib sib zog nqus tau nkag mus rau hauv lub cev, Pulmonary veins nqa cov ntshav oxygenated los ntawm lub ntsws mus rau lub plawv thiab cov hlab ntsha hauv lub cev khaws cov ntshav deoxygenated los ntawm cov ntaub so ntswg thiab nqa nws. rau lub siab. Lawv kuj tseem muaj cov ntaub so ntswg tib yam li cov hlab ntsha tab sis lawv tsis cog lus nyob nruab nrab ntawm lub plawv dhia.
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Qhov txawv ntawm Cov hlab ntsha thiab leeg 1. Cov hlab ntsha nqa cov ntshav liab oxygenated los ntawm lub plawv mus rau qhov seem ntawm lub cev thaum cov hlab ntsha nqa cov ntshav deoxygenated los ntawm cov ntaub so ntswg mus rau lub plawv. 2. Cov hlab ntsha yog tuab thiab cov leeg nqaij vim lawv yuav tsum tau ris lub siab siab thaum cov ntshav ntws los ntawm lub plawv mus rau hauv nws. Cov hlab ntsha muaj zog tsawg dua thaum piv rau cov hlab ntsha. 3. Lub siab vim lub plawv dhia los ntawm lub plawv yog siab heev nyob rau hauv cov hlab ntsha thiab yog li cov ntshav ntws nyob rau hauv spurts whereas cov ntshav ntws nyob rau hauv cov leeg yog qeeb thiab du. 4. Cov hlab ntsha tsis muaj li qub thaum cov hlab ntsha muaj li qub los tiv thaiv cov ntshav rov qab los. 5. Cov hlab ntsha tawg thaum cov ntshav tsis ntws los ntawm lawv tab sis cov hlab ntsha nyob ncaj. |
Zaj lus
Cov hlab ntsha thiab cov hlab ntsha yog qhov tseem ceeb ntawm cov hlab ntsha. Ob lub luag haujlwm tseem ceeb sib npaug hauv kev tswj hwm homeostasis ntawm lub cev. Lawv ua lub luag haujlwm tseem ceeb hauv kev tswj hwm ntau yam cwj pwm ntawm lub cev xws li pH, lub cev kub thiab lwm yam.
