Stifle flexors Flashcards
M. biceps femoris
oAction:extends hip, and hock;caudal part flexes stifle
M. abductor cruris caudalis
o Action: abducts hindlimb, flexes stifle
M. semitendinosus
o Action: extends hip, flexes stifle and extends hock
M. semimembranosus
oAction: extends hip and flexes stifle joint
M. sartorius pars caudalis
o Action:flexes hip, flexes stifle
M. gracilis
oAction: adducts hindlimb, extends hip, flexes stifle, extends tarsus
M. popliteus
o Origin: fossa m. poplitei on lateral femoral condyle, there is a sesamoid bone in the tendon of the origin
o Insertion: it twists caudally under lig. collaterale laterale, then inserts caudally on proximal part of tibia, on linea m. poplitei
o Action: flexes stifle, rotates leg medially (pronates stifle)
M. flexor digitorum superficialis
o Origin: fossa supracondylaris of femur, partly fused with m. gastrocnemius caput lateralis
o Insertion: its tendo plantaris turns from medial to lateral direction around common calcaneal tendon, on the surface of tuber calcanei it makes a cap (galea calcanea), then finally attaches to P2 of digits II-V. on plantar surface
o Action: flexes stifle, extends hock, flexes joints of digits II-V
M. gastrocnemius
o Origin: medial and lateral supracondylar tuberosities of femur (inside their heads – caput mediale and laterale – there are sesamoid /Vesalius/ bones, former: fabellae)
o Insertion: on tuber calcanei (as a part of common calcaneal tendon)
o Action: flexes stifle, extends tarsus
