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Gross Anatomy > Pelvic Limb Muscles-Details To Muscle > Flashcards

Pelvic Limb Muscles-Details To Muscle Flashcards

1
Q

Origin: sacrotuberous ligament; ischiatic tuberosity

Insertion: by means of the fascia lata and crural fascia to the patella, patellar ligament, and cranial border of the tibia; tuber calcanei via the common calcanean tendon

Action: extend hip and hock; extend (weight bearing)/flex (not weight bearing) the stifle

hamstring muscle

A

Biceps femoris

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2
Q

Origin: ischiatic tuberosity

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

Action: extend hip and hock; flex the stifle

hamstring muscle

A

Semitendinosus

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3
Q

Origin: ischiatic tuberosity

Insertion: distal and medial aspect of the caudal femur; medial condyle of the tibia

Action: extend hip; extend (weight bearing)/flex (not weight bearing) the stifle

hamstring muscle

A

Semimembranosus

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4
Q

Origin: crest of ilium; thoracolumbar fascia; ventral border of ilium

Insertion: patella and cranial border of tibia

Action: flex hip; extend (weight bearing)/flex (not weight bearing) the stifle

  • cranial and caudal parts; caudal part forms cranial border of femoral triangle*
  • deep inguinal lymph nodes at its cranial border*
A

Sartorius

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5
Q

Origin: pelvic symphysis via symphysial tendon

Insertion: cranial border of tibia; tuber calcanei via common calcanean tendon

Action: adduct limb; flex stifle; extend hip and hock

A

Gracilis

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6
Q

Origin: pubis

Insertion: medial lip of caudal rough surface of femur

Action: adduct limb

makes the caudal border of the femoral triangle

A

Pectineus

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7
Q

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

Insertion: lateral lip of the caudal rough surface of femur

Action: adduct limb; extend hip

A

Adductor

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8
Q

Origin: tuber coxae; aponeurosis of middle gluteal

Insertion: fascia lata

Action: tense fascia lata; flex hip; extends stifle

A

Tensor fascia latae

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9
Q

Origin: sacrotuberous ligament; deep gluteal fascia

Insertion: third trochanter of the femur

Action: extend hip; abduct limb

A

Superficial gluteal

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10
Q

Origin: crest and gluteal surface of ilium

Insertion: greater trochanter of the femur

Action: extend hip; abduct limb; rotate pelvic limb medially

  • piriformis muscle is considered part of the middle gluteal*
  • in horse, an accessory gluteal muscle is considered part of the middle gluteal and is affiliated with the trochanteric bursa*
A

Middle gluteal

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11
Q

Origin: body of ilium; ischiatic spine

Insertion: greater trochanter of the femur

Action: extend hip; abduct hip; rotate pelvic limb medially

A

Deep gluteal

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12
Q

Origin: dorsal pelvic symphysis

Insertion: trochanteric fossa of the femur

Action: rotate the limb laterally

  • tendon and subtendinous bursa as the tendon passes over the less ischiadic notch*
  • 1 of 4 small pelvic association muscles*
A

Internal obturator

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13
Q

Origin: lateral surface of ischium, ventral to the lesser ischiatic notch

Insertion: trochanteric fossa of the femur

Action: rotate limb laterally

  • compression by the tendon of the internal obturator makes this muscle look like it has two parts*
  • 1 of the 4 small pelvic association muscles*
A

Gemelli

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14
Q

Origin: ventral surface of caudal ischium

Insertion: intertrochanteric crest of the femur

Action: rotate limb laterally; extend hip

1 of the 4 small pelvic association muscles

A

Quadratus femoris

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15
Q

Origin: ventral surface of pubis and ischium

Insertion: trochanteric fossa of femur

Action: rotate limb laterally

A

External obturator

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16
Q

Origin: ilium (rectus femoris); proximal aspect of femur (vastus lateralis, vastus intermedius, vastus medialis)

Insertion: tibial tuberosity via the patellar ligament

Action: flex hip (rectus femoris); extend stifle (all heads)

essential for weight bearing

A

Quadriceps femoris

17
Q

Origin: ventral aspect of lumbar vertebrae; cranioventral ilium

Insertion: lesser trochanter of femur

Action: flex hip

has two parts: psoas major and iliacus

A

Iliopsoas

18
Q

Origin: proximal and lateral aspect of the tibia near the extensor groove

Insertion: proximal plantar surface of MT I and II

Action: flex tarsus; rotate paw laterally

  • the tendon is held down by the crural extensor retinaculum along with the tendon of the long digital extensor*
  • in horse, the medial tendon is called the cunean tendon*
A

Cranial tibial

19
Q

Origin: extensor fossa of the femur

Insertion: extensor processes of distal phalanges II-V

Action: extend digits; flex tarsus

the tendon of this muscles is held down by the crural extensor retinaculum along with the cranial tibial tendon, as well as the tarsal extensor retinaculum on the dorsal surface of the metatarsus

A

Long digital extensor

20
Q

Origin: lateral collateral ligament; proximal aspect of tibia and fibula

Insertion: tarsal bone IV; plantar aspect of proximal ends of metatarsals

Action: flex tarsus; rotate paw medially

the horse has a fibularis tertius instead of a fibularis longus

A

Fibularis/Peroneous longus

21
Q

Origin: medial and lateral supracondylar tuberosities of the femur

Insertion: tuber calcanei

Action: extend tarsus; flex stifle

has medial and lateral heads, each containing a sesamoid bone in their tendons of origin; the two heads envelope the muscular portion of the SDF; these tendons (tendon of gastrocnemius and of SDF) form the central component of the calcanean tendon

A

Gastrocnemius

22
Q

Origin: lateral supracondylar tuberosity of femur (in common with lateral head of gastrocnemius)

Insertion: tuber calcanei; plantar aspect of the base of middle phalanges II-V

Action: flex stifle; extend tarsus; flex digits

intertendinous calcanean bursa (between tendons of SDF and gastrocnemius) and subcutaneous calcanean bursa (between the skin and the tendon of the SDF)

A

Superficial digital flexor

23
Q

Origin: proximal tibia and fibula and adjacent interosseous membrane between the two

Insertion: plantar aspect of the base of the distal phalanges I-V

Action: flex digits; extend tarsus

A

Deep digital flexor

24
Q

Origin: lateral condyle of femur

Insertion: proximal and caudomedial aspect of tibia

Action: flex stifle; rotate crus medially

popliteal sesamoid bone in its tendon of origin

A

Popliteous

Gross Anatomy (5 decks)

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