Video: Dab tsi yog raphe system?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
84017. Anatomical cov ntsiab lus ntawm neuroanatomy. Cov raphe nuclei (Greek:? αφή, "seam") yog pawg me me ntawm cov nuclei pom hauv lub paj hlwb. Lawv muaj 5-HT1 receptors uas txuas nrog Gi / Go-protein-inhibiting adenyl cyclase. Lawv ua haujlwm li autoreceptors hauv lub hlwb thiab txo qis kev tso tawm ntawm serotonin.
Ib yam li ntawd, raphe nuclei nyob qhov twg?
Cov raphe nug yog suav tias yog ib feem ntawm kev tsim cov reticular thiab yog nyob hauv hlwb. Nws yog lub luag haujlwm rau kev tso tawm serotonin rau lwm qhov hauv lub hlwb.
Ib tug kuj yuav nug, ua li cas raphe nucleus hloov kho qhov mob? Nws cov fiber ntau txuas mus rau lwm qhov ntawm lub hauv paus paj hlwb muab lub hauv paus morphological rau nws mob hloov pauv muaj nuj nqi. Nws cov phiaj xwm nqis los, dhau ntawm nuf cev magnus los yog ncaj qha, hloov cov lus teb tshwm sim los ntawm kev ua kom tsis zoo ntawm tus txha nqaj qaum dorsal horn neurons.
Ntawm no, qhov nruab nrab raphe yog dab tsi?
Cov median raphe nucleus (MRN los yog MnR), tseem hu ua nucleus raphes medianus (NRM) los yog superior central nucleus, yog lub hlwb thaj tsam ntawm polygonal, fusiform, thiab piriform neurons, uas muaj rostral rau lub nucleus raphes pontis.
Dab tsi yog lub luag haujlwm ntawm raphe nuclei?
αφή, "seam") yog pawg me me ntawm nuclei pom hauv lub hlwb qia. Lawv muaj 5-HT1 receptors uas txuas nrog Gi / Go-protein-inhibiting adenyl cyclase. Lawv muaj nuj nqi raws li autoreceptors hauv lub hlwb thiab txo qhov kev tso tawm ntawm serotonin.
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