- radix <-> ramus
- aff. <-> eff.
- radix ventralis bestaat
uit afferente neuronen
- N. spinalis splitst in:
- ramus dorsalis
- ramus verntralis
- Ramus ventralis:
- op sommige niveaus plexusvorming
- Ramus dorsalis is gemengd
Plexus
- herordening van rami ventralis
- niet op thoracaal niveau
- Rm -> nn. spinalis gemengd
- -> rami ventrales
- -> plexus
- -> perifere zenuwen
, Huidinnervatie
- dermatomenkaart
- innervatie vanuit RM segmenten /
nn. spinales
- dermatomen van naast elkaar
gelegen RM-segmenten overlappen
elkaar: bij uitval van een segment →
sensibiliteitsuitval is kleiner
- bij uitval van segment C6 is het gevoel in
heel dermatoom C6 uitgevallen
- perifere huidinnervatie
- innervatie vanuit perifere zenuwen
Innervatie schoudergordel/bovenste extremiteiten
- RM segmenten:
- (C4)C5 t/m T1
- rami ventrales
- herordening in plexus
- perifere nn.
- focus op motorische innervatie
Opbouw plexus brachialis
, - rami ventrales C4/C5- T1
-> 3 trunci
-> per truncus: ventraal en dorsaal
deel
-> 3 fasculi
- perifere nn., ook onderweg
afgegeven
- per truncus
- ventraal deel (flexoren)
- dorsaal deel (extensoren)
- 3 fasciculi
- fasciculus lateralis
- fasciculus medialis
- fasciculus posterior
- ligging wordt gerelateerd aan de grote
slagader in je oksel
plexus brachialis
- pars supraclavicularis (boven het clavicula)
- pars infraclavicularis (onder het clavicula)
indeling en locaties
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