Canine Pelvic Limb Muscles

Biceps femoris
Biceps femoris
O: sacrotuberous ligament, ischiatic tuberosity
I: cranial surface of distal thigh, cranial surface of crus, calcaneus as part of common calcanean tendon
A: extend hip, hock, and stifle, flex stifle, shortens the distance between ischiatic tuberosity and tibia and tarsus

Semitendinosus
Semitendinosus
O: ischiatic tuberosity
I: craniomedial tibial surface
A: flex stifle, extend hip and hock, shortens distance between ischiatic tuberosity and proximal tibia

Semimembranosus
Semimembranosus
O: ischiatic tuberosity
I: medial condyle of tibia, distal medial surface of femoral bone
A: extend hip, minor flexor of stifle

Gastrocnemius
Gastrocnemius
O: medial and lateral epicondyles of femur
I: calcanean tuber
A: extend tarsus, flex stifle

Superficial Digital Flexor
Superficial Digital Flexor
O: lateral supracondylar tuberosity of femur
I: calcaneal tuber, palmar surface of bases of middle digits 2-5
A: some flex at stifle, extends tarsus, flexes proximal interphalangeal and metatarsophalangeal joints

Popliteus
Popliteus
O: lateral epicondyle of femur
I: proximal third of caudal surface of tibia
A: rotate leg medially – pronate, stabalize stifle joint

Cranial tibial muscle
Cranial tibial muscle
O: extensor groove of tibia, lateral edge of cranial tibial border
I: plantar surface of base of metatarsals 1-2
A: Flex tarsus, some supination of pes

Long digital extensor
Long digital extensor
O: extensor fossa of femur
I: extensor process of dorsoproximal portion of each distal phalanx 2-5
A: flex tarsus, extends digits

Fibularis (Peroneus) longus
Fibularis (Peroneus) longus
O: lateral collateral ligament of stifle, promixal lateral surfaces of tibia and fibula
I: fourth tarsal bone, plantar aspect of base of metatarsals
A: flex tarsus, pronate

Lateral digital extensor
Lateral digital extensor
O: proximal portion of fibula
I: joins long digital extensor to distal phalanx of digit 5
A: extends and abducts digit 5

Deep digital flexor
Deep digital flexor
O: caudal aspect of proximal two thirds of tibia, proximal half of fibula
I: flexor tubercle of distal plalanx in each digit 2-5
A: flex digits and extend tarsus

Sartorius
Sartorius
O: cranial – crest of ilium, caudal – cranial ventral iliac spine
I: cranial – patella, caudal – cranial border of tibia
A: flex hip, cranial part extends stifle, caudal part flexes stifle

Gracilis
Gracilis
O: symphysis pelvis (symphysial tendon)
I: cranial border of tibia and calcaneal tendon
A: adduct limb, flex stifle, extend hip and hock

What runs through the femoral triangle?
What runs through the femoral triangle?
The femoral artery and vein. Used to check pulse on palpation.

What are the borders of the femoral triangle?
What are the borders of the femoral triangle?
Cranial: caudal part of sartorius m.
Caudal: pectineus
Proximal: inguinal ligament

Pectineus
Pectineus
O: iliopubic eminence and pubic tubercle via prepubic tendon
I: distal end of medial lip of caudal surface of femur
A: adduct limb

Adductor
Adductor
O: entire pelvic symphysis by symphyseal tendon and ventral surface of pubis and ischium
I: entire lateral lip of caudal rough face of femur
A: adduct limb, extend hip

Tensor fascia latae
Tensor fascia latae
O: tuber coxae, aponeurosis of middle gluteal muscle
I: lateral femoral fascia
A: flex hip, extend stifle, tense lateral femoral fascia

Superficial gluteal
Superficial gluteal
O: lateral border of sacrum and first caudal verteba
I: third trochanter
A: extend hip, abduct the limb

Middle gluteal
Middle gluteal
O: crest and gluteal surface of ilium
I: greater trochanter
A: extend and abduct hip, rotate limb medially

Deep gluteal
Deep gluteal
O: body of ilium; ischiatic spine
I: greater trochanter, medial aspect
A: extend and abduct hip, rotate limb medially

Internal obturator
Internal obturator
O: symphysis pelvis and dorsal surface of ischium and pubis
I: trochanteric fossa of femur
A: rotate limb laterally at the hip

Gemelli
Gemelli
O: lateral surface of ischium caudal to acetabulum and ventral to lesser ishiatic notch
I: trochanteric fossa of femur
A: rotate limb laterally at the hip

Articularis coxae
Articularis coxae
O: lateral surface of ilium
I: neck of femur
A: little significance – landmark for sx

Quadratus femoris
Quadratus femoris
O: ventral surface, caudal part of ischium
I: intertrochanteric fossa
A: extend hip, rotate limb laterally
(pic: deep muscles medial to left hip joint)

External obturator
External obturator
O: ventral surface of pubis and ischium
I: trochanteric fossa
A: rotate limb laterally

What are the four parts of the Quadriceps femoris?
What are the four parts of the Quadriceps femoris?
Rectus femoris
Vastus lateralis
Vastus intermedius
Vastus medialis

Quadriceps femoris
Quadriceps femoris
O: RF – ilium, V – proximal femur
I: patella then tibial tuberosity
A: extend stifle, flex hip

Iliopsoas
Iliopsoas
O: psoas major – lumbar vertebrae, iliacus – cranioventral ilium
I: lesser trochanter
A: flex hip

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Palpate bony landmarks of the pelvis a. Pubic symphysis b. Pubic crest – attachment for rectus abdominis c. Pubic tubercle – attachment for inguinal ligament d. ASIS e. PSIS – dimples f. Ischial tuberosity g. Crest of ilium h. Tubercle …

Where is the adductor tubercle of the femur located, and what attaches there? -Located just superior to the medial epicondyle -Tendons of the adductor magnus attach to it What bone articulates with the prominent surfaces on the anterior parts of …

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