Pelvic Limb Flashcards by Kenny Kingston

Biceps femoris Origin

Sarcotuberous ligament and ischiatic tuberosity

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Biceps femoris insertion

patela, patellar ligament and cranial border of tibia via fascia lata and crural fascia; tuber calcanean tendon

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Biceps femoris action

extend hip, stifle, and hock; can flex stifle when not bearing weight

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Semitendinosus origin

ishiatic tuberosity

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Semitendinosus insertion

medial surface of tibial body, tuber calcanei via common calcanean tendon

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Semitendinosus action

extend hip; flex stifle; extend hock

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Semimembranosus origin

ishiatic tuberosity

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Semimembranosus insertion

medial surface of tibial body; tuber calcanei via common calcanean tendon

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Semimembranosus action

extend hip; extend or flex stifle depending on limb position

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Sartorius origin

crest of ilium & thoracolumbar fascia; ventral border of ilium

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Sartorius insertion

patella and cranial border of tibia

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Sartorius action

flex hip; extend stifle (weight bearing)
flex stifle (not weight bearing)

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Gracilis origin

pelvic symphysis via symphysial tendon

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gracilis insertion

cranial border of tibia; tuber calcanei via common calcanean tendon

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gracilis action

adduct limb; flex stifle; extend hip and hock

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Pectineus origin

pubis (pre-pubic tendon and iliopubic eminence)

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Pectineus insertion

distal end of caudomedial aspect of femur (medial lip of caudal rough surface)

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Pectineus action

adduct limb

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adductor origin

pelvic symphysis via symphysial tendon; ventral surface of pubis and ischium

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Adductor insertion

caudolateral aspect of femur (entire lateral lip of caudal rough surface of femur)

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Adductor action

adduct limb; extend hip

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tensor fasciae latae origin

tuber coxae; aponeurosis of middle gluteal m.

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tensor fasciae latae insertion

lateral femoral fascia (fascia lata)

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tensor fasciae latae action

tense fascia lata; flex hip; extend stifle

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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