Anatomy Pelvic Limb Muscle OIAs

Tensor fasciae latae m.

O: tuber coxae

I: fascia lata

A: tense the fascia lata

Superficial gluteal m.

O: sacrum and caudal vertebra

I: third trochanter

A: extend the coxal joint, abduct the pelvic limb

Middle gluteal m.

O: gluteal surface of the ilium

I: greater trochanter

A: extend the coxal joint, abduct the pelvic limb

Piriformis m.

O: sacrum and caudal vertebra

I: greater trochanter

A: extend the coxal joint, abduct the pelvic limb

Deep gluteal m.

O: body of the ilium and ischiatic spine

I: greater trochanter

A: extend the coxal joint, abduct the pelvic limb

Articularis coxae m.

I: neck of femur

A: protects coxal joint capsule

Gluteofemoralis m.

Only in the cat, pulls tail and extends the coxal joint

External obturator m.

O: ventral aspect of the os coxae around obturator foramen

I: trochanteric fossa

A: rotate the limb laterally at the coxal joint

Internal obturator m.

O: dorsal aspect of os coxae around the obturator foramen

I: trochanteric fossa

A: rotate the limb laterally at the coxal joint

Gemelli m.

O: lateral aspect of ischium

I: trochanteric fossa

A: rotate the limb laterally at the coxal joint

Quadratus femoris m.

O: ventral aspect of ischium

I: trochanteric fossa

A: rotate the limb laterally at the coxal joint

Biceps femoris m.

O: ischiatic tuberosity

I: lateral aspect of the genual region, tuber calcanei

A: extend the coxal joint, variable action on the genual joint, extend the tarsocrural joint

Semimembranosus m.

O: ischiatic tuberosity

I: medial aspect of genual region

A: extend coxal joint, variable action on the genual joint

Sartorius m.

O: on or near the ilium

I: medial aspect of the genual region

A: flex the coxal joint, cranial belly extends the genual joint

Semitendinosus m.

O: ischiatic tuberosity

I: medial aspect of genual region, tuber calcanei

A: extend the coxal joint, variable action on the genual joint, extend the tarsocrural joint

Gracilis m.

O: pelvic symphysis

I: medial aspect of the genual region, tuber calcanei

A: adduct the pelvic limb, extend the tarsocrural joint

Pectineus m.

O: on or near pecten of pubis

I: distal body of femur

A: adduct the pelvic limb

Adductor m.

O: ventral surface of os coxae

I: most of the caudal surface of femur

A: adduct the pelvic limb

Quadriceps femoris m.

O: rectus femoris-body of ilium other heads-proximal femur

I: tibial tuberosity

A: flex the coxal joint-rectus femoris, extend the genual joint-all heads

Iliopsoas m.

O: ilium and lumbar vertebrae

I: lesser trochanter

A: flex the coxal joint

Cranial tibial m.

O: proximal tibia

I: proximal metatarsus

A: flex the tarsocrural joint

Long digital extensor m.

O: extensor fossa of femur

I: extensor processes of distal phalanges

A: flex the tarsocrural joint, extend the digital joints

Fibularis longus m.

O: on or near lateral collateral ligament of the genual joint

I: tarsus/proximal metatarsus

A: flex the tarsocrural joint

Gastrocnemius m.

O: medial and lateral supracondylar tuberosities of femur

I: tuber calcanei

A: flex the genual joint, extend the tarsocrural joint

Superficial digital flexor m.

O: on or near lateral supracondylar tuberosity of femur

I: tuber calcanei, plantar bases of middle phalanges

A: flex the genual joint, fkex the metatarsalphalangeal joints, flex the proximal interphalangeal joints, extend the tarsocrural joint

Soleus m.

Absent in dog only in cat.

Part of calcaneal tendon

Deep digital flexor m.

O: proximocaudal tibia/fibula

I: flexor tubercle of distal phalanges

A: extend the tarsocrural joint, flex the digital joints

Popliteus m.

O: fossa for the popliteus m.

Interosseus m.

Short digital extensor m.