Video: Puas yog npua muaj leeg thiab cov hlab ntsha?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub circulatory system ntawm a npua muaj lub plawv, cov hlab ntsha , leeg , thiab capillaries. Muaj ob ntu rau hauv qhov system. Muaj cov hlab ntshav ncig ntawm cov ntshav mus rau lub ntsws thiab cov txheej txheem ntawm cov ntshav mus rau lwm qhov tus npua lub cev.
Ntawm no, npua puas muaj leeg?
Illiac hlab ntsha - Zoo li tib neeg, menyuam hauv plab npua muaj ib khub ntawm qhov tsis zoo ib yam leeg , tab sis tsis muaj cov hlab ntsha tsis zoo ib yam. Saib p. 69 & 79 ntawm FPDG. Vim tias cov hlab ntsha hlab ntsha loj heev, qhov sib thooj ntawm cov hlab ntsha sab hauv kuj tseem loj heev.
pes tsawg tus hlab ntsha muaj tus npua? 1-1 ob cov hlab ntsha muab cov pa oxygen rau lub plab thiab cov hnyuv (thiab tseem muaj cov txiav txiav thiab tus po). Lawv khaws cov ceg ntoo kom txog thaum lawv tsim cov capillaries uas tom qab ntawd koom ua ke los tsim cov leeg ntshav uas nqa cov ntshav mus rau lub siab.
Tom qab ntawd, ib tus kuj tseem tuaj yeem nug, hom kab mob dab tsi hauv lub cev muaj tus npua?
Cov npua muaj a circulatory system uas yog qhov zoo sib xws rau tib neeg circulatory system . Hauv npua , cov circulatory system yog tsim los ntawm lub plawv, ntshav, thiab cov hlab ntshav. Raws li lub npe qhia, qhov no lawv yog lub luag haujlwm rau xa cov ntshav thiab cov as -ham thoob plaws lub cev.
Cov npua thiab tib neeg muaj dab tsi sib xws?
4. Npua muaj tawv nqaij thiab nqaij zoo sib xws. Txuas ntxiv anatomical zoo sib xws, npua thiab tib neeg faib cov tawv nqaij thiab nqaij zoo sib xws. Npua daim tawv nqaij feem ntau yog siv ua tattoo rau kev ua haujlwm neeg daim tawv nqaij, thiab cov uas paub muaj hais tias neeg nqaij qab tshaj plaws zoo li nqaij npuas.
Pom zoo:
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
Vim li cas peb thiaj sau cov ntshav los ntawm cov hlab ntsha thiab tsis yog los ntawm cov hlab ntsha?
Cov leeg yuav tsum tau li qub kom cov ntshav ntws mus rau lub plawv. Theses li qub yog qhov tshwj xeeb hauv ob txhais ceg thiab caj npab. Lawv tawm tsam lub ntiajteb txawj nqus los tiv thaiv cov ntshav rov qab los. Cov hlab ntsha tsis xav tau li qub vim tias lub siab los ntawm lub plawv ua kom cov ntshav ntws los ntawm lawv mus rau ib qho
Puas yog cov hlab ntsha uas muaj oxygenated ntshav lossis cov hlab ntsha?
Cov hlab ntsha tau pom tias yog nqa cov ntshav oxygenated mus rau cov ntaub so ntswg, thaum cov leeg nqa cov ntshav deoxygenated rov qab mus rau lub plawv. Txawm li cas los xij, hauv txoj hlab ntsws, cov hlab ntsha nqa cov ntshav deoxygenated los ntawm lub plawv mus rau lub ntsws, thiab cov hlab ntshav rov qab ntshav los ntawm lub ntsws mus rau lub plawv
Puas yog tag nrho cov hlab ntsha nqa cov ntshav oxygenated thiab cov leeg nqa cov ntshav deoxygenated?
Cov hlab ntsha ua ib feem ntawm lub circulatory system. Cov hlab ntsha nqa cov ntshav oxygenated tawm ntawm lub plawv mus rau cov ntaub so ntswg, tshwj tsis yog cov hlab ntshav hauv lub ntsws, uas nqa ntshav mus rau lub ntsws rau cov pa oxygen (feem ntau cov leeg ntshav nqa cov ntshav deoxygenated mus rau lub plawv tab sis cov leeg hauv ntsws nqa cov ntshav oxygenated ib yam)