dit zijn extra slides om zo het volledige deel / hoofdstuk van het handboek te bekomen. deze slides kunnen bij de slides van prof. Vereeck gebruikt worden.
Het zijn slides van p105-106 h5
Upper- en lowermotorneurolesion
• Bij neurologische aandoeningen =onderscheid tussen
uppermotorneuronlaesie (UMN-laesie)
lowermotorneuronlaesie (LMN-laesie).
• corticospinale baan
belangrijke route voor willekeurige spieractiviteit
ontspringt in precentrale gyrus /zone 4, zone 4S ,zone 6 van motorische cortex in
frontale kwab
Vanuit cellichamen verlaten axonen cortex via capsula interna.
geen kapsel
passage van descenderende &ascenderende banen (fig 5.5)w
axonen verlaten capsula interna
gaan via pedunculi (stelen) van middenhersenen door hersenstam tot medulla
oblongata.
80-90% van axonen kruist naar contralaterale zijde medulla oblongata &daalt af in
ruggenmerg, in laterale corticospinale baan.
axonen die niet kruisen in medulla oblongata, zetten weg voort aan dezelfde zijde
in ventrale corticospinale baan.
,
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