Video: Dab tsi yog lub zog tsav uas ua kom cov ntshav ntws mus thoob plaws txhua cov hlab ntsha?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov no puas pab tau?
Yog · Tsis yog
Ib yam li ib tus yuav nug, dab tsi muab lub zog tsav uas ua kom cov ntshav txav mus?
Venous siab yog tsav zog rau rov qab los ntawm ntshav mus rau lub plawv.
Ib sab saum toj no, peb qhov tseem ceeb ntawm kev tiv thaiv cov ntshav yog dab tsi? Ntshav viscosity, tag nrho ntshav nkoj ntev, ntshav nkoj txoj kab uas hla
Ib sab saum toj, dab tsi yog lub zog tsav rau cov ntshav ntws?
Qhov nruab nrab cov hlab ntshav siab yog zog uas tsav lub ntws ntawm ntshav los ntawm lub circulatory system. Txhawm rau kom ntseeg tau kev ncig ntawm ntshav rau cov ntaub so ntswg hauv lub cev, cov hlab ntshav yuav tsum ua ceg me thiab cov hlab me me (txo lub vojvoog).
Cov hlab ntsha twg hauv qab no yuav muaj kev tiv thaiv zoo tshaj plaws rau cov ntshav ntws?
Arteriole yog ib txoj kab uas hla me me cov hlab ntsha nyob rau hauv microcirculation uas txuas thiab ceg tawm ntawm cov hlab ntsha thiab ua rau capillaries. Arterioles muaj cov phab ntsa ntawm cov leeg (feem ntau tsuas yog ib mus rau ob txheej ntawm cov leeg nqaij) thiab yog thawj qhov chaw ntawm vascular tsis kam.
Pom zoo:
Cov hlab ntsha qis hauv cov hlab ntsha ntws mus rau qhov twg?
Brachiocephalic leeg
Cov hlab ntsha hlab ntsha thiab cov hlab ntshav muaj dab tsi?
Cov hlab ntsha nqa ntshav tawm ntawm lub plawv; Lub ntsiab hlab ntsha yog aorta. Capillaries nqa ntshav tawm ntawm lub cev thiab pauv cov as-ham, pov tseg, thiab oxygen nrog cov ntaub so ntswg ntawm qib cellular. Cov leeg ntshav yog cov hlab ntshav uas coj cov ntshav rov qab los rau hauv lub plawv thiab tso ntshav tawm ntawm cov kabmob thiab cov ceg
Puas yog Neuroglia tsim cov hlab ntsha hauv cov hlab ntsha hauv nruab nrab cov hlab ntsha?
Muaj plaub hom neuroglia pom nyob hauv nruab nrab lub paj hlwb: Astrocytes - tswj cov ntshav lub hlwb teeb meem thiab khaws cov tshuaj ib puag ncig los ntawm kev siv cov ions rov qab thiab cov tshuaj xa xov mus rau lub cev. Oligodendrocytes - myelinate axons nyob rau hauv lub hauv nruab nrab lub paj hlwb thiab muab tag nrho cov txheej txheem txheej txheem
Cov npe ntawm cov hlab ntsha uas nqa cov ntshav mus rau lub ntsws yog dab tsi?
Cov hlab ntsha. Qhov qis dua thiab zoo tshaj vena cava nqa cov ntshav tsis zoo los ntawm lub cev mus rau sab xis atrium. Cov hlab ntsha pulmonary channel tso cov ntshav tsis muaj oxygen los ntawm txoj cai ventricle mus rau hauv lub ntsws, qhov twg oxygen nkag mus rau hauv cov hlab ntsha. Cov hlab ntsws coj cov ntshav muaj cov pa oxygen mus rau sab laug atrium
Dab tsi yog lub npe ntawm cov hlab ntshav uas nqa ntshav ntshav los ntawm lub taub hau caj dab thiab caj npab mus rau sab xis atrium?
Superior vena cava