2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov hlab ntsha (liab) nqa oxygen thiab cov as-ham tawm ntawm koj lub siab, mus rau koj lub cev cov ntaub so ntswg. Cov hlab ntsha (xiav) coj cov ntshav tsis muaj oxygen rov qab mus rau lub plawv. Cov hlab ntsha pib nrog lub aorta, cov hlab ntsha loj tawm hauv plawv. Lawv nqa cov ntshav uas muaj oxygen tawm ntawm lub plawv mus rau tag nrho lub cev nqaij daim tawv.
Puas cov hlab ntsha ib txwm nqa cov ntshav uas muaj oxygen?
Cov hlab ntsha feem ntau nqa cov ntshav oxygenated thiab cov leeg feem ntau nqa cov ntshav deoxygenated. Qhov no muaj tseeb feem ntau ntawm lub sijhawm. Txawm li cas los xij, cov hlab ntsha pulmonary thiab cov hlab ntsha yog ib qho kev zam rau txoj cai no. Pulmonary veins nqa cov ntshav oxygenated mus rau lub plawv thiab cov hlab ntsha pulmonary nqa cov ntshav deoxygenated tawm ntawm lub plawv.
Leej twg nqa cov ntshav uas muaj oxygen?
Cov hlab ntsha pulmonary nqa 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. Lub pulmonary veins coj cov ntshav uas muaj oxygen mus rau sab laug atrium. Lub aorta nqa cov ntshav uas muaj oxygen rau lub cev los ntawm sab laug ventricle.
Lub siab twg ntawm lub siab tso cov ntshav uas muaj oxygen?
sab laug ntawm koj lub siab tau txais cov ntshav uas muaj oxygen los ntawm koj lub ntsws thiab tso nws los ntawm koj cov hlab ntsha mus rau tag nrho koj lub cev.
Dab tsi yog cov ntshav uas muaj oxygen?
Qib lossis cov pa oxygen hauv cov ntshav txiav txim siab xim ntawm red. Raws li cov ntshav tawm hauv lub plawv thiab muaj oxygen nplua nuj, nws yog xim liab. Thaum twgcov ntshav rov qab mus rau lub plawv, nws muaj oxygen tsawg. Nws tseem liab tab sis yuav tsaus dua.
Pom zoo:
Cov hlab ntsha puas muaj cov endothelium du?
circulatory system …an sab hauv ntawm du endotheliumnpog los ntawm qhov chaw ntawm cov ntaub so ntswg elastic. Lub tunica media, los yog lub tsho nruab nrab, yog tuab hauv cov hlab ntsha, tshwj xeeb tshaj yog nyob rau hauv cov hlab ntsha loj, thiab muaj cov leeg nqaij sib txuas nrog elastic fibers.
Puas ntshav ntws los ntawm cov hlab ntsha qeeb?
Tus nqi, lossis nrawm, ntawm cov ntshav ntws sib txawv nrog rau tag nrho cov ntu ntu ntawm cov hlab ntsha. Raws li tag nrho cov ntu ntu ntu ntawm cov hlab ntsha nce, qhov nrawm ntawm kev ntws qis. ntshav ntws qeeb tshaj hauv cov hlab ntsha, uas tso cai rau lub sijhawm pauv cov pa roj thiab cov khoom noj.
Puas yog cov hlab ntshav thiab cov hlab plawv zoo ib yam?
Cov kab mob plawv yog qee zaum hu ua ntshav-vascular, lossis tsuas yog cov hlab ntshav, system. Nws muaj lub plawv, uas yog cov khoom siv lub cev, thiab lub kaw lus kaw ntawm cov hlab ntsha hu ua cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha.
Puas yog cov hlab ntsha loj dua cov hlab ntsha?
Arterioles nqa ntshav thiab oxygen mus rau hauv cov hlab ntsha me tshaj plaws, cov hlab ntsha. Capillaries yog li ntawd small lawv tsuas pom tau nyob hauv lub tshuab tsom. Cov phab ntsa ntawm capillaries yog permeable rau oxygen thiab carbon dioxide.
Puas yog mob qog noj ntshav ua rau cov hlab ntsha tawg?
Lwm yam ua rau muaj kab mob hemorrhages muaj xws li mob caj dab rheumatoid, sab hauv malignancy, mitral stenosis thiab kab mob lupus erythematosus, antiphospholipid syndrome, kab mob peptic rheumatoid, malignancies, siv qhov ncauj contraceptives, cev xeeb tub.
