![Cov hlab ntsha twg yog qhov tsawg tshaj plaws? Cov hlab ntsha twg yog qhov tsawg tshaj plaws?](https://i.answers-medical.com/preview/medical-health/14091029-which-type-of-blood-vessel-is-the-smallest-j.webp)
Video: Cov hlab ntsha twg yog qhov tsawg tshaj plaws?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Arterioles nqa ntshav thiab oxygen mus rau hauv cov hlab ntsha me tshaj plaws, cov cov hlab ntsha . Capillaries me me heev lawv tsuas pom tau nyob rau hauv lub microscope. Cov phab ntsa ntawm cov cov hlab ntsha muaj cov pa oxygen thiab carbon dioxide. Oxygen txav ntawm lub cov hlab ntsha mus rau cov cell ntawm cov nqaij thiab cov kabmob.
Ib yam li ib tus yuav nug, cov hlab ntshav los ntawm qhov me tshaj plaws mus rau qhov loj tshaj yog dab tsi?
Cov hlab ntsha loj tshaj plaws yog vena cava qis dua, uas nqa ntshav los ntawm lub cev qis mus rau lub plawv. Lub superior vena cava coj cov ntshav rov qab mus rau lub plawv los ntawm lub cev sab saud. Capillaries yog cov hlab ntsha me tshaj plaws. Lawv txuas me me heev cov hlab ntsha thiab cov leeg.
Ib tus kuj tseem yuav nug tau, hom hlab ntshav twg muaj phab ntsa tuab tshaj plaws? Cov hlab ntsha yog a cov hlab ntsha uas coj ntshav deb ntawm lub plawv. Txhua cov hlab ntsha muaj cov tuab tuab phab ntsa uas tuaj yeem tiv taus qhov siab ntawm ntshav tshem tawm ntawm lub siab. Txawm li cas los xij, cov neeg nyob ze rau lub siab muaj qhov phab ntsa tuab , uas muaj qhov feem pua siab ntawm cov xov paj ywj hauv tag nrho peb ntawm lawv lub tsho.
Dhau li, hom hlab ntshav twg muaj qhov siab tshaj?
Tseem ceeb: Qhov siab tshaj siab ntawm circulating ntshav tau pom hauv cov hlab ntsha, thiab kawm tiav qis dua li qhov ntshav ntws los ntawm cov hlab ntsha, cov hlab ntsha, cov hlab ntshav, thiab cov leeg (qhov uas nws yog qis tshaj ). Qhov loj tshaj poob rau hauv ntshav siab tshwm sim ntawm kev hloov ntawm cov hlab ntsha mus rau arterioles.
Cov hlab ntsha me hu ua dab tsi?
Aorta ceg mus rau hauv lub network ntawm cov hlab ntsha me uas nthuav dav thoob plaws lub cev. Cov cov hlab ntsha ' me me ceg yog hu ua arterioles thiab capillaries. Cov pulmonary cov hlab ntsha nqa cov ntshav tsis muaj oxygen los ntawm lub plawv mus rau lub ntsws nyob rau hauv qis qis, ua rau cov no cov hlab ntsha tshwj xeeb
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Skeletal thiab cardiac nqaij fibers. Npaj cov leeg hauv qab no los ntawm qhov tsawg tshaj plaws mus rau qhov loj tshaj plaws: nqaij fiber ntau, fascicle, myofibril, filament, nqaij. Npaj cov nqaij mos sib txuas hauv qab no los ntawm qhov tsawg tshaj plaws mus rau qhov loj tshaj: epimysium, perimysium, fascia, endomysium. cov sarcomere
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Txawm hais tias txoj hlab ntsha yog ib txwm ntseeg tias taug kev hauv qhov zawj ntawm qhov tsis zoo ntawm tus tav nrog rau cov hlab ntsha thiab cov leeg leeg, cov hlab ntsha kuj tseem tuaj yeem nyob nruab nrab ntawm cov tav. Cov paj hlwb intercostal nyob tob rau hauv cov leeg nqaij intercostal thiab sab nraud rau lub pleura
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Cov hlab ntsha loj tshaj plaws yog vena cava qis dua, uas nqa ntshav los ntawm lub cev qis mus rau lub plawv. Lub superior vena cava coj cov ntshav rov qab mus rau lub plawv los ntawm lub cev sab saud. Capillaries yog cov hlab ntsha me tshaj plaws. Lawv txuas cov hlab ntsha me me thiab cov leeg