Medial muscles of thigh

Question 1

Medial muscles of thigh

Answer 1

m. sartorius pars cranialis et caudalis
m. adductor
m. pectinues
m. gracillis

Question 2

m.sartorius

Answer 2

In dogs it has a pars cranialis and pars caudalis.
Origin: iliac crest, cranial ventral iliac spine, thoracolumbar fascia

Insertion: radiating into fascia lata and crural fascia, cranial part inserts above stifle joint, caudal part inserts below stifle joint (the latter medially reaches tibial crest)

Action: flexes hip, extends or flexes stifle(depending on which part contracts more)

Question 3

m.adductor

Answer 3

Origin: m.adductor longus from ramus cranialis ossis pubis, m.adductor magnus et brevis are arising from symphysis pelvis (tendo symphysialis), ramus caudalis ossis pubis and ramus ossis ischi

Insertion: facies aspera and labium laterale of femur

Action: adducts hindlimb and extends hip

Question 4

m.pectinues

Answer 4

Origin: pecten ossis pubis, prepubic tendon

Insertion: medial lip of rough surface on femoral shaft(labium mediale ossis femoris, next to facies aspera)

Action: adduction of thigh

Question 5

m.gracillis

Answer 5

Origin: symphysis pelvis(by means of tendo symphysialis)

Insertion: medially on tibial crest, fascia cruris, tuber calcanei by tendo accessorius to common calcaneal tendon

Action: adducts hindlimb, extends hip, flexes stifle ,extends tarsus