Video: Dab tsi yog cov hlab ntsha?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Txheej txheem ncig, hauv physiology, Circuit ntawm nkoj muab cov ntshav oxygenated rau thiab rov qab deoxygenated ntshav los ntawm cov ntaub so ntswg ntawm lub cev, raws li qhov txawv ntawm cov hlab ntsws.
Tsis tas li ntawd, cov hlab ntsha puas yog dab tsi?
Txheej txheem ncig nqa oxygenated ntshav los ntawm sab laug ventricle, los ntawm cov hlab ntsha, mus rau cov hlab ntsha hauv cov nqaij ntawm lub cev. Los ntawm cov ntaub so ntswg capillaries, deoxygenated ntshav rov qab los ntawm cov kab ke ntawm cov hlab ntshav mus rau sab xis atrium ntawm lub plawv.
Ib tus kuj tseem yuav nug, qhov twg yog cov hlab ntsha hauv nruab nrog? Cov cov hlab ntsha systemic yog cov ntsiab lus sib txuas nruab nrab ntawm cov hlab ntsha thiab cov leeg ntawm txoj kev ncig zoo. Nws yog ntawm qhov qib me me uas ua pa thiab pub mis ntawm cov hlwb ntawm tib neeg lub cev tshwm sim.
Kuj Paub, dab tsi yog qhov systemic Circuit suav nrog?
Cov kev sib txuas lus yog ib feem ntawm koj lub cev ncig uas nqa ntshav tawm ntawm koj lub plawv, xa nws mus rau feem ntau ntawm koj lub cev thiab cov ntaub so ntswg, thiab xa rov mus rau koj lub siab dua. Cov kev sib txuas lus yog qhov txawv ntawm pulmonary Circuit Court , uas tsuas yog ua ntshav ntawm koj lub plawv thiab lub ntsws.
Dab tsi yog 3 hom hlab ntsha thiab lawv lub luag haujlwm yog dab tsi?
Lub luag haujlwm tseem ceeb ntawm cov hlab ntshav yog nqa ntshav hla lub cev. Cov ntshav nqa oxygen, cov as -ham, thiab cov khib nyiab uas xav tau txav mus los thoob plaws lub cev. Muaj peb hom hlab ntshav: cov hlab ntsha , leeg , thiab cov hlab ntsha.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov hlab ntsha thiab cov hlab ntsha capillaries?
Piav qhia: Cov hlab ntshav nqa ntshav nyob hauv siab los ntawm lub plawv mus rau cov kabmob thiab cov nqaij. Lawv cov phab ntsa feem ntau yog tuab dua li cov leeg. Capillaries yog qhov sib txuas ntawm cov hlab ntsha thiab cov leeg thiab me me heev, Cov ntaub so ntswg qee zaum pom tawm thiab rov nco qab los ntawm cov qog ntshav thiab rov qab los rau cov leeg ntshav
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
Dab tsi yog cov hlab ntsha thiab cov hlab ntsha capillaries?
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
Dab tsi yog cov hlab ntsha tseem ceeb ntawm cov hlab ntsha?
Cov hlab ntsha, cov hlab ntsha thiab lymphatic system yog cov hlab ntsha tseem ceeb hauv lub cev circulating system. parasympathetic - lub luag haujlwm rau vasoconstriction