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Video: Qhov thib 3 lumbar vertebra nyob qhov twg?
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2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov thib peb lumbar nqaj qaum vertebra (L3) nyob hauv nruab nrab ntawm lumbar qaum , ua rau nws tshwj xeeb raug rau hnav thiab tsim kua muag. Nws yog ib qho ntawm cov chaw feem ntau ua rau ua rau mob ntev qis rov qab mob.
Ib yam li ib tus yuav nug, cov hlab ntsha puas l3 cuam tshuam dab tsi?
L3 qaum paj hlwb . Cov L3 qaum paj hlwb cov hauv paus hniav tawm ntawm cauda equina los ntawm kev qhib pob txha me me (intervertebral foramina) ntawm sab laug thiab sab xis ntawm tus txha nqaj qaum. Cov L3 cev innervates cov cheeb tsam tshwj xeeb ntawm daim tawv nqaij thiab cov leeg nyob hauv qis qis.
Tom qab ntawd, lo lus nug yog, dab tsi ntawm lub cev tswj lub lumbar qaum? Cov lumbar qaum yog nyob rau hauv lub qis rov qab hauv qab ntawm lub ncauj tsev menyuam thiab thoracic seem ntawm tus qaum . Nws muaj tsib vertebrae hu ua L1 - L5. Cov no lumbar vertebrae (los yog lub lumbar pob txha) muaj qaum qaum ntaub so ntswg thiab paj hlwb uas tswj kev sib txuas lus ntawm lub hlwb thiab ob txhais ceg.
Khaws qhov no saib, nyob qhov twg l2 thiab l3 hauv qaum?
Lumbar vertebrae . Txoj hauj lwm ntawm tib neeg lumbar vertebrae (pom liab). Nws muaj 5 pob txha, los ntawm sab saud, L1, L2 , L3 L4 thiab L5. Lub lumbar vertebrae yog, hauv tib neeg lub cev, tsib vertebrae nruab nrab ntawm kab tav thiab lub plab.
L2 paj hlwb tswj dab tsi?
Qhov thib ob lumbar txha nraub qaum paj hlwb ( L2 ) keeb kwm los ntawm tus txha nqaj qaum los ntawm hauv qab lub lumbar vertebra 2 ( L2 ). L2 muab ntau cov leeg, ncaj qha lossis dhau paj hlwb keeb kwm los ntawm L2 . Lawv tuaj yeem ua rau sab hauv nrog L2 raws li tib neeg keeb kwm, lossis tau koom nrog ib nrab los ntawm L2 thiab ib nrab los ntawm lwm tus txha caj qaum paj hlwb.
Pom zoo:
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Dr. John M. Harris tau pib lub ntiaj teb thawj lub tsev kho hniav hauv Bainbridge, Ohio, thiab tau pab tsim kho hniav raws li kev noj qab haus huv. Nws qhib rau 21 Lub Ob Hlis 1828, thiab niaj hnub no yog tsev khaws puav pheej kho hniav. Thawj lub tsev kawm kho hniav, Baltimore College ntawm Kev Kho Hniav, tau qhib hauv Baltimore, Maryland, Asmeskas xyoo 1840
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