Pelvic Limb Flashcards
Biceps femoris Origin
Sarcotuberous ligament and ischiatic tuberosity
Biceps femoris insertion
patela, patellar ligament and cranial border of tibia via fascia lata and crural fascia; tuber calcanean tendon
Biceps femoris action
extend hip, stifle, and hock; can flex stifle when not bearing weight
Semitendinosus origin
ishiatic tuberosity
Semitendinosus insertion
medial surface of tibial body, tuber calcanei via common calcanean tendon
Semitendinosus action
extend hip; flex stifle; extend hock
Semimembranosus origin
ishiatic tuberosity
Semimembranosus insertion
medial surface of tibial body; tuber calcanei via common calcanean tendon
Semimembranosus action
extend hip; extend or flex stifle depending on limb position
Sartorius origin
crest of ilium & thoracolumbar fascia; ventral border of ilium
Sartorius insertion
patella and cranial border of tibia
Sartorius action
flex hip; extend stifle (weight bearing) flex stifle (not weight bearing)
Gracilis origin
pelvic symphysis via symphysial tendon
gracilis insertion
cranial border of tibia; tuber calcanei via common calcanean tendon
gracilis action
adduct limb; flex stifle; extend hip and hock
Pectineus origin
pubis (pre-pubic tendon and iliopubic eminence)
Pectineus insertion
distal end of caudomedial aspect of femur (medial lip of caudal rough surface)
Pectineus action
adduct limb
adductor origin
pelvic symphysis via symphysial tendon; ventral surface of pubis and ischium
Adductor insertion
caudolateral aspect of femur (entire lateral lip of caudal rough surface of femur)
Adductor action
adduct limb; extend hip
tensor fasciae latae origin
tuber coxae; aponeurosis of middle gluteal m.
tensor fasciae latae insertion
lateral femoral fascia (fascia lata)
tensor fasciae latae action
tense fascia lata; flex hip; extend stifle
superficial gluteal origin
sacrotuberous ligament; deep gluteal fascia
superficial gluteal insertion
third trochanter of femur
superficial gluteal action
extend hip; abduct limb
middle gluteal origin
crest and gluteal surface of ilium
middle gluteal insertion
greater trochanter of the femur
middle gluteal action
extend hip; abduct hip; rotate pelvic limb medially
deep gluteal origin
body of ilium; ischiatic spine
deep gluteal insertion
greater trochanter of the femur
deep gluteal action
extend hip; abduct hip; rotate pelvic limb medially
internal obturator origin
dorsal surface of ischium and pubis, dorsal pelvic symphysis
internal obturator insertion
trochanteric fossa of the femur
internal obturator action
rotate pelvic limb laterally
gemelli origin
lateral surface of ischium ventral to the lesser ischiatic notch
gamelli insertion
trochanteric fossa of the femur
gamelli action
rotate pelvic limb laterally
quadratus femoris origin
ventral surface of caudal ischium
quadratus femoris insertion
intertrochanteric crest of the femur
quadratus femoris action
rotate pelvic limb laterally; extend hip
external obturator origin
ventral surface of pubis and ischium
external obturator insertion
trochanteric fossa of the femur
external obturator action
rotate pelvic limb laterally
quadriceps femoris origin
proximal aspect of femur
Ilium (rectus femoris)
quadriceps femoris insertion
tibial tuberosity via the patellar ligament
quadriceps femoris action
flex hip (rectus femoris) and extend the stifle (all heads)
iliopsoas origin
ventral aspect of lumbar vertebrae; cranioventral ilium
iliopsoas insertion
lesser trochanter of the femur
iliopsoas action
flex hip
cranial tibial origin
proximal and lateral aspect of the tibia near the extensor groove
cranial tibial insertion
proximal plantar surface of metatarsals I and II
cranial tibial action
flex tarsus; rotate paw laterally so plantar surface faces medially
long digital extensor origin
extensor fossa of the femur
long digital extensor insertion
extensor process of distal phalanges digits II, III, IV, and V
long digital extensor action
extend digits; flex tarsus
fibularis longus origin
lateral collateral ligament; proximal aspect of tibia and fibula
fibularis longus insertion
tarsal bone IV; plantar aspect of proximal ends of metatarsals
fibularis longus action
flex tarsus; rotate paw medially so plantar surface faces laterally
gastrocnemius origin
medial and lateral supracondylar tuberosities of the femur
gastrocnemius insertion
tuber calcanei
gastrocnemius action
extend tarsus; flex stifle
superficial digital flexor origin
lateral supracondylar tuberosity of the femur
superficial digital flexor insertion
tuber calcanei; plantar aspect of the base of the middle phalanx of digits II, III, IV, and V
superficial digital flexor action
flex stifle; extend tarsus; flex digits
deep digital flexor origin
proximal tibia and fibula and adjacent interosseus membrane between the two
deep digital flexor insertion
plantar aspect of the base of the distal phalanx of digits I-V
popliteus origin
lateral condyle of femur
popliteus insertion
proximal and caudal aspect of the tibia
popliteus action
flex stifle; rotate leg (crus) medially
