Cov txheej txheem:
Video: Cov hlab ntsha tseem ceeb tshaj plaws nyob qhov twg?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Qhov loj tshaj plaws cov leeg yog aorta, lub lub ntsiab cov raj xa dej siab txuas nrog lub plawv sab laug lub ntsws. Theaorta ceg mus rau hauv lub network me dua cov hlab ntsha uas txuas ntxiv thoob plaws lub cev.
Kuj lo lus nug yog, cov hlab ntsha twg yog qhov feem ntau muaj txhaws?
Hauv coronary cov leeg disease-cov feem ntau hom kab mob plawv thiab ua rau neeg tua neeg hauv Tebchaws Meskas-cov no thaiv cuam tshuam rau cov hlab ntsha ua rau lub plawv, ua rau mob hauv siab thiab feem ntau tshwm sim hauv plawv nres.
Tom qab ntawd, lo lus nug yog, 5 lub hlab ntsha loj nyob qhov twg? Nov yog cov npe ntawm cov hlab ntsha ntawm tib neeg lub cev.
- Cov aorta.
- Cov hlab ntsha ntawm lub taub hau thiab caj dab. Cov kab mob carotid ntau. Qhov sab nrauv carotid.
- Cov hlab ntsha ntawm sab qaum teb. Subclavian leeg. Theaxilla.
- Cov hlab ntsha ntawm lub cev. Qhov qis aorta.
- Cov hlab ntsha ntawm qhov qis qis. Cov hlab ntsha femoral.
Hauv kev hais txog qhov no, 4 cov hlab ntsha loj yog dab tsi?
Lawv ceg tawm ntawm aorta ntawm nws lub hauv paus. Txoj cai sab xis cov leeg , sab laug lub ntsiab coronary, sab laug qis dua, thiab sab laug circumflex cov leeg , yog cov plaub loj kab mob plawv cov hlab ntsha.
Dab tsi yog 3 lub plawv plawv loj?
Cov hlab plawv sab laug muab:
- Circumflex artery - muab ntshav rau sab laug atrium, sab thiab sab nraub qaum ntawm lub ntsws.
- Sab laug Anterior Descending artery (LAD) - muab khoom rau pem hauv ntej thiab hauv qab ntawm lub qhov ntswg sab laug thiab pem hauv ntej ntawm lub septum.
Pom zoo:
Cov hlab ntsha thiab cov hlab ntsha nyob qhov twg?
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
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
Cov hlab ntsha twg nyob rau hauv cov ntshav siab tshaj plaws?
Ntshav siab tuaj yeem txhais tau tias yog ntshav siab ntawm phab ntsa ntawm cov hlab ntshav thaum nws ncig thoob plaws lub cev. Cov ntshav siab siab tshaj plaws thaum nws tawm hauv lub plawv los ntawm aorta thiab maj mam txo qis thaum nws nkag mus rau cov hlab ntsha me thiab cov hlab ntsha me me (cov hlab ntsha, cov hlab ntsha, thiab cov hlab ntsha)
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 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