Puas pom Purkinje hlwb nyob qhov twg?
Puas pom Purkinje hlwb nyob qhov twg?

Video: Puas pom Purkinje hlwb nyob qhov twg?

Video: Puas pom Purkinje hlwb nyob qhov twg?
Video: Zon Yang - Koj Nyob Qhov Twg (Official MV) 2024, Lub Xya hli ntuj
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lub hlwb

Ib sab ntawm no, qhov twg pom Purkinje fibers?

?Rˈk? Nd? I/ pur-KIN-jee; Purkinje cov ntaub so ntswg los yog cov ceg ntoo subendocardial) yog nyob hauv cov phab ntsa hauv plawv ntawm lub plawv, tsuas yog hauv qab endocardium hauv qhov chaw hu ua subendocardium.

Ib sab saum toj no, txheej twg ua Purkinje cell dendrites ceg rau? Ua kom pom tseeb dendrites ncua rau hauv cov molecular txheej los ntawm ib leeg subjacent txheej ntawm cov hlab ntsha loj no ntawm tes cev (npe Purkinje txheej ). Ib zaug nyob rau hauv cov molecular txheej , cov Purkinje cell dendrites ceg nthuav dav nyob rau hauv lub dav hlau ntawm txoj cai kaum rau txoj kev taug ntawm cov kab sib chaws sib txuas (Daim duab 19.8A).

Tom qab ntawd, lo lus nug yog, Purkinje cov haujlwm yog dab tsi?

Feem ntau Purkinje hlwb tso tawm cov neurotransmitter hu ua GABA (gamma-aminobutyric acid), uas ua rau muaj kev cuam tshuam rau qee yam neurons thiab yog li txo qis kev sib kis ntawm cov hlab ntsha. Cov no inhibitory kev ua haujlwm pab tau Purkinje hlwb tswj thiab tswj xyuas kev txav chaw lub cev.

Muaj pes tsawg lub cev ntawm tes tuab yog Purkinje cell txheej?

Nruab nrab txheej , cov Purkinje cell txheej , tsuas yog 1- cell tuab . Sab nrauv txheej , cov molecular txheej , yog ua los ntawm axons ntawm granule hlwb thiab dendrites ntawm Purkinje hlwb , nrog rau ob peb lwm yam ntawm tes hom.

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