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Samenvatting spieren hand en pols regio
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spieren hand en pols regio
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SpierenFLEXOREN VAN VOORARM EN HAND
Diepe laag
M. pronator quadratus
O : distale ¼ facies anterior, margo anterior en facies medialis ulna
I : distale ¼ facies anterior tot margo anterior radius
F : pronate
ligt op radius, membrana interossea en ulna, verder diep
M. flexor pollicis longus
O : facies anterior radii + radiale helf membrana interossea + proc coronoideus
(variabel)
I : basis eindphalanx duim
F : op duim à fexie, oposite, abducte, pols à palmaire fexie
korte spierbuik, lange pees (pees onder retnncula fexorum)
kruist oppervlakkig M. pronator quadratus
spierbuik oppervlakkig in radiodistale deel voorarm
M. flexor digitorum profondus
O : ulna, prox 2/3 vd ventrale mediale nijde tot mediaal incisura trochlearis + mediale
helf vd prox 2/3 vd membrana interossea
I : eindphalangen vingers 2-5, proximale deel vd volaire nijde
F : terminaal kootje : fexie, alle kootjes : fexie, pols : palmaire fexie
Penen in 1 vlak, lopen door canalis carpi (diepe peeslaag)
Mediodistaal oppervlakkig, bedekt M. pronator quadratus
Middenlaag
M. flexor digitorum supericialis
O : Caput humero-ulnare:
o epicondylus medialis + lig collaterale mediale + proc coronoideus
o Caput radiale : facies ventralis radii
o Beesboog : tss beide capita
I : distale nijranden van de middenphalanx 2-5
F :
o elleboog : fexie
o pols : palmaire fexie
o vingers : fexie
Inserte splitst thv basisphalanx in twee penen (omgeven penen profundus)
Bedekt middelste deel van de dieper gelegen buigers
Koppen en penen in 2 lagen
1
, Oppervlakkige laag
M. pronator teres
O :
o Caput humerale : epicondylus medialis + septum intermusculare
o Caput ulnare : med van brachialispees, tss O van M. fexor digitorum
superfcialis en variabele kop M. fexor pollicis longus
I : tuberositas pronatoria (op facies lateralis radii)
F :
o elleboog : fexie
o voorarm : pronate
Caput humerale bedekt kleine spoelvormige buik caput ulnare,
brachialispees, bovendeel caput ulnare vd M. fexor digitorum superfcalis
Begrenst dist en med fossa cubit
M. flexor carpi radialis
O : epicondylus medialis
I : ventraal op MCP 2 soms 3
F :
o elleboog fexie
o pronate voorarm
o pols fexie en radiale deviate
Verloopt oppervlakkig in kanaal retnacula fexorum
Ligt in sulcus os trapnium, fxeert in een lus de pees vd M. fexor pollicis longus
M. palmaris longus
O : epicondylus medialis
I : aponeurosis palmaris
F : pols palmaire fexie, handpalm : fexie vingers
Oppervlakkig
Venels verlopen boven retnacula fexorum, ulnair v M. fexor carpi radialis
M. flexor carpi ulnaris
O :
o Caput humerale : epicondylus medialis
o Caput ulnare : olecranon (med) + margo posterior ulnae tot halverwege, (penig
blad)
I : os pisiforme + lig pisohamatum & pisometacarpale (à os hamatum, MCP 4&5)
F : elleboog fexie, palmaire fexie en ulnaire deviate pols
Oppervlakkig, bedekt M. fexor superfciales, profondus en M. pronator teres
2
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