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Pelvic Limb Muscles
origin (O), insertion (I), action (A), and innervating nerve (N)
28
Anatomy
1st Grade
08/30/2011

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Cards

Term
m. biceps femoris
Definition
O: ischiatic tuberosity, sacrotuberous ligament
I: patella, patellar ligamenr, tibial crest and body, and tuber calcanei (via fascia and fascia lata)
A: extension of hip, hock, stifle. caudal parts flex stifle
N: sciatic n.
Term
middle gluteal m.
Definition
O: wing of ilium
I: greater trochanter
A: extension and abduction of hip, rotation of thigh
N: cranial glutea n.
Term
superficial gluteal m.
Definition
O: lateral portion of the sacrum, sacrotuberous ligament
I: third trochanter
A: extension of hip, abduction of limb
N: caudal glutea n.
Term
m. tensor fascia lata
Definition
O: dorsal part of tuber coxae (ilium), aponeurosis of middle gluteal m.
I: lateral femoral fascia
A: flexion of hip, extension of stifle
N: cranial gluteal n.
Term
m. sartorious (cranial)
Definition
O: iliac crest, thorocombular fascia
I: patella
A: flexion of hip, extension of stifle
N: femoral n.
Term
m. sartorius (caudal)
Definition
O: iliac spine, ventral border of ilium
I: cranial border of tibia
A: flexion of hip, flexion of stifle
N: femoral n.
Term
deep gluteal m.
Definition
O: body of ilium
I: greater trochanter
A: extension and abduction of hip, rotation of thigh
N: cranial gluteal n.
Term
m. piriformis
Definition
O: lateral aspect of S3 and Cd1
I: greater trochanter
A: extension of hip
N: caudal gluteal n.
Term
m. quadriceps femoris-
m. rectus femoris
Definition
O: iliopubic eminence
I: tibial tuberosity (via patella/patellar ligament)
A: flexion of hip, extension of stifle
N: femoral n.
Term
m. quadriceps femoris-
m. vastus lateralis
Definition
O: craniolateral proximal aspect of femur
I: tibial tuberosity (via patella/patellar ligament)
A: extension of stifle
N: femoral n.
Term
m. quadriceps femoris-
m. vastus intermedius
Definition
O: craniolateral proximal aspect of femur
I: tibial tuberosity (via patella/patellar ligament)
A: extension of stifle
N: femoral n.
Term
m. quadriceps femoris-
m. vastus medialis
Definition
O: craniomedial proximal aspect of femur
I: tibial tuberosity (via patella/patellar ligament)
A: extension of stifle
N: femoral n.
Term
m. gastrocnimeus
Definition
O: medial and lateral supracondylar tuerosities (femur)
I: tuber calcanei
A: extension of tarsus, flexion of stifle
N: tibial n.
Term
m. iliopsoas
Definition
O: ventral border of ilium, lumbar vertebrae
I: lesser trochanter
A: flexion of hip and lumbar vertebral column
N: ventral rami of lumbar spinal nn., femoral n.
Term
m. semimembranosus
Definition
O: ischiatic tuberosity
I: caudomedial femur, proximal tibia
A: extension of hip, flexion and extension of stifle
N: sciatic n.
Term
m. semitendinosus
Definition
O: ischiatic tuberosity
I: via fascia of the leg to medial body of tibia and tuber calcanei
A: extension of hip and hock, flexion of stifle
N: sciatic n.
Term
mm. gemelli
Definition
O: lateral ischium
I: trochanteric fossa (femur)
A: lateral rotation of hip
N: sciatic n.
Term
m. quadratus femoris
Definition
O: caudoventral ischium
I: distal to trochanteric fossa on femur
A: extension and lateral rotation of hip
N: sciatic n.
Term
internal obturator m.
Definition
O: pelvic side of pubis and ischium
I: trochanteric fossa (femur)
A: Outward rotation of hip
N: sciatic n.
Term
m. gracilis
Definition
O: pelvis symphasis
I: cranial tibia and tuber calcanei
A: adduction of limb, flexion of stifle, extension of hip and hock
N: obturator n.
Term
adductor m.
Definition
O: pelvic symphysis, ventral parts of pubis and ischium
I: lateral lip of caudal femur
A: adduction of limb and extension of hip
N: obturator n.
Term
m. pectineus
Definition
O: prepubic tendon and iliopubic eminence
I: distal end of medial lip of caudal femur
A: adduction of limb
N: obturator n.
Term
external obturator m.
Definition
O: ventral pelvis, on margins of obturator foramen
I: trochanteric fossa
A: outward rotation of hip
N: obturator n.
Term
long digital extensor m.
Definition
O: extensor fossa of distolateral femur
I: extensor process of distal phalanx of digits 2 through 4.
A: flexion of hock, extension of digits
N: common fibular n.
Term
deep digital flexor m.
Definition

O: proximal tibia/fibula

I: plantar distal phalanx 2-5

A: tarsal extension, interphalangeal/metatarsophalangeal joint flexion

N: tibial n.

Term
superficial digital flexor m.
Definition
O: lateral supracondylar region of distocaudal femur and lateral sesamoid of the m. gastrocnemius
I: proximoplantar aspect of middle phalanges (digits 2 through 5)
A: flexion of digits
N: tibial n.
Term
cranial tibial m.
Definition
O: arcing line running parallel slightly lateral to the tibial tuberosity and cranial border of the proximal tibia
I: plantar aspect of proximal parts of metatarsals I and II
A: flexion of tarsus, outward rotation of pes
N: common fibular n.
Term
m. popliteus
Definition
O: distocaudal aspect of lateral femoral condyle
I: medial aspect of proximocaudal tibia.
A: Unclear.
N: tibial n.
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