Video: Cov hlab ntsha puas muaj lawv tus kheej cov ntshav?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov phab ntsa ntawm no cov hlab ntsha muaj ntau elastin. Tunica Adventitia: koj puas xav tau ntau tus thwjtim? muaj me me 'vasa vasorum' raws li qhov loj cov hlab ntsha xav tau lawv tus kheej cov ntshav.
Kuj nug, vim li cas lub plawv thiaj xav tau nws cov ntshav?
Vim koj plawv yog cov leeg, nws xav tau nws tus kheej cov ntshav muab nws nrog cov pa thiab cov as -ham nws xav tau . Nws tau txais qhov no ntshav txaus los ntawm cov hlab plawv loj, uas coj ncaj tawm ntawm lub ntsiab ntshav lub nkoj (aorta) tawm ntawm koj plawv tom qab khaws cov pa oxygen tshiab.
Ntxiv mus, cov hlab ntsha puas muaj cov leeg? Arteries muaj zoo heev ua tsaug ntau nqaij nyob rau hauv lawv cov phab ntsa tshaj cov leeg, yog li lawv cov phab ntsa tuab dua. Qhov no yog vim lawv muaj nqa cov ntshav tawm ntawm lub plawv mus rau txhua lub nruab nrog cev thiab cov ntaub so ntswg uas xav tau cov ntshav oxygenated.
Ntawm no, cov hlab ntsha twg yog cov leeg leeg?
Piv txwv ntawm cov leeg leeg suav nrog cov radial cov leeg thiab splenic cov leeg . Cov leeg leeg , nrog rau elastic cov hlab ntsha , yog cov chaw ib txwm muaj rau atherosclerosis.
4 cov hlab ntsha loj yog dab tsi?
Lub Coronary Cov hlab ntsha yog cov hlab ntsha uas muab ntshav rau koj lub plawv. Lawv ceg tawm ntawm aorta ntawm nws lub hauv paus. Txoj cai kab mob plawv cov leeg , sab laug lub ntsiab coronary, sab laug anterior nqis los, thiab sab laug circumflex cov leeg , yog cov plaub loj kab mob plawv cov hlab ntsha.
Pom zoo:
Hom hlab ntshav twg txuas cov hlab ntsha thiab cov hlab ntshav?
Hom hlab ntsha Capillaries yog feeb nyias-walled hlab ntsha uas txuas cov hlab ntsha thiab venules; Nws yog los ntawm cov capillaries uas cov as-ham thiab cov pov tseg tau pauv ntawm cov ntshav thiab cov ntaub so ntswg ntawm lub cev
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