Video: Dab tsi yog periaqueductal grey teeb meem?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Cov grey periaqueductal yog qhov teeb meem nyob ib ncig ntawm lub paj hlwb hauv qhov tegmentum ntawm lub paj hlwb. Nws ua haujlwm rau lub nucleus raphe magnus, thiab tseem muaj cov kab ntawv qis qis qis. Thaj chaw no tau siv los ua lub hom phiaj rau kev txhawb lub paj hlwb hauv cov neeg mob uas mob ntev.
Xav txog qhov no, dab tsi yog qhov ua haujlwm ntawm periaqueductal grey ntawm lub hlwb?
Cov grey periaqueductal (PAG) yog lub cev thiab muaj nuj nqi interface ntawm lub forebrain thiab qis dua hlwb thiab muaj qhov loj lub luag hauj lwm nyob rau hauv kev coj tus cwj pwm zoo rau sab hauv (piv txwv li, mob) lossis sab nraud (piv txwv li, kev hem thawj) kev ntxhov siab.
Tsis tas li, PAG hauv lub hlwb yog dab tsi? Periaqueductal grey, los yog PAG , yog thaj tsam ntawm cov teeb meem grey pom nyob hauv nruab nrab lub paj hlwb. Cov PAG puag ncig lub paj hlwb (li lub npe periaqueductal) thiab nyob ib kem ntawm lub paj hlwb uas nthuav dav txog 14 hli ntev.
Dhau li, periaqueductal txhais li cas?
Kev kho mob Txhais ntawm periaqueductal : ntawm, cuam tshuam nrog, lossis yog qhov teeb meem grey uas nyob ib puag ncig cov dej ntawm Sylvius.
Dab tsi yog txoj kev mob nqes hav?
Lub voj voog uas suav nrog periaqueductal grey (PAG) teeb meem hauv lub paj hlwb qaum, thaj chaw coeruleus (LC), nucleus raphe magnus (NRM) thiab nucleus reticularis gigantocellularis (Rgc) txhawb rau nqis qhov mob kev txwv txoj kev , uas txwv tsis pub nkag mob cov ntaub ntawv ntawm tus txha nqaj qaum
Pom zoo:
Dab tsi yog qhov sib txawv tseem ceeb ntawm teeb meem tsom mus rau kev daws teeb meem thiab kev xav tsom mus rau kev daws?
Thaum kev ntxhov siab pom tau tias yog tswj tau, teeb meem tsom mus rau cov tswv yim daws teeb meem cuam tshuam nrog cov tsos mob ntawm kev puas siab puas ntsws, thaum nyob hauv qhov xwm txheej tsis txaus ntseeg, kev xav-tsom mus rau kev daws teeb meem cuam tshuam nrog cov tsos mob tsawg dua
Dab tsi muab cov xim grey ntawm cov teeb meem grey?
Hom roj hauv myelin ua rau nws zoo li dawb, yog li cov myelin-ntom dawb teeb meem siv rau ntawm cov xim dawb ib yam. Hauv kev sib piv, qhov teeb meem grey feem ntau yog lub cev neuron cell thiab tsis yog neuron hlwb hlwb hu ua glial cells. Cov kab mob glial no muab cov as -ham thiab lub zog rau cov neurons
Dab tsi yog pom nyob rau hauv cov teeb meem grey ntawm tus txha caj qaum?
Grey teeb meem hais txog unmyelinated neurons thiab lwm cov hlwb ntawm lub hauv nruab nrab lub paj hlwb. Nws muaj nyob rau hauv lub hlwb, lub paj hlwb thiab cerebellum, thiab tam sim no nyob rau hauv lub qaum qaum. Qhov teeb meem grey hauv tus txha nqaj qaum muaj interneurons, ntxiv rau lub cev ntawm tes ntawm cov paj hlwb
Puas yog kev daws teeb meem kev kho mob tib yam li kev daws teeb meem luv luv kho?
Kev kho mob tsom mus rau kev kho mob, tseem hu ua kev daws teeb meem hais qhia luv (SFBT), yog hom kev kho mob uas muab qhov tseem ceeb tshaj ntawm kev tham txog kev daws teeb meem ntau dua (Berg, nd) Lo lus "luv luv" hauv kev kho mob luv luv yog qhov tseem ceeb
Dab tsi yog qhov txawv ntawm grey teeb meem thiab cov teeb meem dawb?
CNS muaj ob hom ntaub so ntswg: grey teeb meem thiab dawb teeb meem, Grey teeb meem, uas muaj ib tug pinkish-grey xim nyob rau hauv lub hlwb nyob, muaj cov cell lub cev, dendrites thiab axon terminals ntawm neurons, yog li nws yog qhov twg tag nrho cov synapses. Qhov teeb meem dawb yog ua los ntawm axons txuas sib txawv ntawm qhov teeb meem grey rau ib leeg