Cov txheej txheem:
- Muaj peb hom tseem ceeb ntawm cov hlab ntsha:
- Cov hlab ntsha suav nrog cov hlab ntsha, cov leeg ntshav, thiab cov hlab ntsha
Video: Peb hom hlab ntsha thiab lawv txoj haujlwm yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Lub luag haujlwm tseem ceeb ntawm cov hlab ntsha yog nqa cov ntshav los ntawm lub cev. Cov ntshav nqa oxygen, cov as -ham, thiab cov khoom pov tseg uas xav tau ncig lub cev. Peb hom hlab ntshav yog: cov hlab ntsha , leeg , thiab cov hlab ntsha . Cov hlab ntsha muaj phab ntsa tuab thiab me dua hauv lub qhov leeg.
Ib yam li ib tus yuav nug, cov haujlwm ntawm 3 hom hlab ntshav yog dab tsi?
Lub ntsiab muaj nuj nqi ntawm cov hlab ntsha yog nqa ntshav los ntawm lub cev. Cov ntshav nqa oxygen, as-ham, thiab pov tseg uas yuav tsum tau txav mus los ntawm lub cev. Muaj peb hom hlab ntsha : cov hlab ntsha, leeg, thiab capillaries.
Ib tug kuj yuav nug, dab tsi yog cov hlab ntsha sib txawv thiab lawv txoj haujlwm? Cov hlab ntsha lub luag haujlwm tseem ceeb yog thauj ntshav ncig lub cev. Cov hlab ntsha tseem ua lub luag haujlwm tswj hwm koj cov ntshav. Cov hlab ntsha muaj nyob thoob plaws lub cev. Muaj tsib yam tseem ceeb ntawm cov hlab ntsha: cov hlab ntsha arterioles, capillaries, venules thiab leeg.
Ib qho ntxiv, peb hom hlab ntsha twg yog dab tsi?
Muaj peb hom tseem ceeb ntawm cov hlab ntsha:
- Cov hlab ntsha. Lawv nqa cov ntshav uas muaj pa oxygen tawm ntawm lub plawv mus rau tag nrho lub cev nqaij daim tawv.
- Capillaries. Cov no yog cov hlab ntsha me me uas txuas cov hlab ntsha thiab cov hlab ntsha.
- Cov leeg.
Peb yam tseem ceeb ntawm cov hlab ntsha loj tshaj plaws mus rau qhov tsawg tshaj plaws yog dab tsi?
Cov hlab ntsha suav nrog cov hlab ntsha, cov leeg ntshav, thiab cov hlab ntsha
- Arteries yog cov leeg nqaij uas nqa ntshav tawm ntawm lub plawv.
- Cov leeg ntshav yog cov hlab ntshav uas nqa ntshav mus rau lub plawv.
- Capillaries yog cov hlab ntsha me tshaj plaws.
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
Dab tsi yog ob txoj hlab ntsha tseem ceeb ntawm cov hlab ntsha?
Lub aorta (lub ntsiab cov ntshav muab rau lub cev) ceg tawm mus rau hauv ob lub ntsiab coronary hlab ntsha (tseem hu ua cov hlab ntsha). Cov hlab ntsha coronary no tawm mus rau hauv cov hlab ntsha me, uas muab cov ntshav oxygen nplua nuj rau tag nrho lub plawv cov leeg. Txoj cai coronary artery muab cov ntshav tsuas yog rau sab xis ntawm lub plawv
Dab tsi yog peb hom hlab ntsha hauv cov hlab ntsha?
Muaj peb yam tseem ceeb ntawm cov hlab ntsha: cov hlab ntsha. Lawv nqa cov ntshav uas muaj oxygen tawm ntawm lub plawv mus rau tag nrho lub cev cov ntaub so ntswg. Capillaries. Cov no yog cov hlab ntshav me me, uas txuas cov hlab ntsha thiab cov leeg. Cov leeg