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Anatomy > Muscles of the pelvic limb > Flashcards

Muscles of the pelvic limb Flashcards

1
Q

Biceps femoris

A

O: ischiatic tuberosity, sacrotuberous ligament

I: patella, patellar ligament; cranial border of tibia via fascia latae and crural fascia; tuber calcanei via common calcanean tendon

Action: extend hip and hock; flex stifle (non weight bearing) or extend (weight bearing)

popliteal lymph node

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2
Q

Semitendinosus

A

O: ischiatic tuberosity

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

Action: extend hip and hock, flex stifle

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3
Q

Semimembranous

A

O: ischiatic tuberosity

I: distal and medial aspect of caudal femur; medial condyle of tibia

Action: extend hip; flex (non weight bearing) or extend (weight bearing) the stifle

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4
Q

Sartorius

A

O: ilium

I: patellar and cranial border of tibia

Action: flex hip; extend (weight bearing) or flex (non weight bearing)

  • *deep inguinal lymph nodes at cranial border**
  • *caudal belly is the cranial border of the femoral triangle**
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5
Q

Gracilis

A

O: pelvic symphysis via symphysial tendon

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

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

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6
Q

Pectineus

A

O: pubis

I: distal end of caudomedial aspect of femur

Action: adduct limb

caudal border for femoral triangle

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7
Q

Adductor

A

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

I: caudolateral aspect of femur

Action: adduct limb; extend hip

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8
Q

Tensor fasciae latae

A

O: tuber coxae; aponeuroses of middle gluteal muscle

I: fascia lata (lateral femoral fascia)

Action: tense fascia lata, flex hip, and extend stifle

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9
Q

What muscles make up the hamstring?

A
  1. Biceps femoris
  2. Semimembranosus
  3. Semitendinosus
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10
Q

superficial gluteal

A

O: deep gluteal fascia; sacrotuberous ligament

I: third trochanter of the femur

Action: abduct hip; extend hip

** fuses with biceps femoris in ox; why ox doesn’t need a third trochanter**

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11
Q

middle gluteal

A

O: crest and gluteal surface of ilium

I: greater trochanter of the femur

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

trochanteric bursa: passes over cranial part of the greater trochanter

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12
Q

Deep gluteal

A

O: body of ilium

I: greater trochanter of femur

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

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13
Q

internal obturator

A

O: dorsal surface of ischium and pubis

I: trochanteric fossa of the femur

Action: rotate pelvic limb laterally

lateral rotators of the hip; small pelvic association

tendinous and subtendinous bursa-passes over lesser ischiatic notch**

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14
Q

gemelli

A

O: lateral surface of ischium; ventral to lesser ischiatic notch

I: trochanteric fossa of the femur

Action: rotate pelvic limb laterally

** lateral rotators of the hip; small pelvic association**

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15
Q

Quadratus Femoris

A

O: ventral surface of the caudal ischium

I: intertrochanteric crest of the femur

Action: rotate pelvic limb laterally; extend hip

lateral rotators of hip; small pelvic association*

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16
Q

External Obturator

A

O: ventral surface of pubis and ischium

I: trochanteric fossa of femur

Action: rotate pelvic limb laterally

17
Q

Quadriceps femoris

A
  1. Vastus Medialis
  2. Vastus Intermedialis
  3. Rectus Femoris
  4. Vastus Lateralis

O: ilium (rectus femoris); proximal aspect of femur (other heads)

I: tibial tuberosity via patellar ligament

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

18
Q

Iliopsoas

A

O: ventral aspect of lumbar vertebrae (psoas major); cranioventral ilium (iliacus)

I: lesser trochanter of the femur

Action: flex hip

19
Q

Cranial tibial

A

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

I: proximal plantar surface of metatarsals I and II

Action: flex tarsus; rotate paw laterally so plantar surface faces medially; SUPINATION of paw

  • *cunean tendon**
  • *held down by crural extensor retinaculum along with tendon of long digital extensor**
20
Q

long digital extensor

A

O: extensor fossa of femur

I: extensor processes of distal phalanges of joints 2, 3, 4, and 5

Action: extend digits; flex tarsus

held down by crural extensor retinaculum and tarsal extensor retinaculum

21
Q

Fibularis (peroneus) Longus

A

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

I: Tarsal bone IV; plantar aspect of proximal ends of metatarsals

Action: flex tarsus; rotate paw medially so plantar surface faces laterally; PRONATION of paw

22
Q

Gastrocnemius

A

O: medial and lateral supracondylar tuberositites of femur

I: tuber calcanei

Action: extend tarsus; flex stifle

  • heads make contact with fabellae!!*
  • candy stripes with superficial digital flexor*
23
Q

What muscle make up the small pelvic association and act as lateral rotators of the hip?

A

Queen Emily Is Great

  1. Quadratus femoris
  2. External Obturator
  3. Internal Obturator
  4. Gemelli
24
Q

What muscles act as medial rotators of the hip?

A
  1. medial gluteal

2. deep gluteal

25
Q

What muscles insert at the tuber calcanei and make up the common calcanean tendon

A

Big Girls Should Get STuffed

  1. Biceps Femoris
  2. Gracilis
  3. Superficial Digital Flexor
  4. Gastrocnemius
  5. SemiTendinosus

** superficial digital flexor is the ONLY one that goes all the way to the sustentaculum tali***

26
Q

What three muscles make up the femoral triangle

A

Cranial border: caudal part of sartorius
Caudal border: pectineus
Base: abdominal wall and inguinal ligament

27
Q

What are the borders of the pelvic outlet?

A

Lateral: sacrotuberous ligament; gluteal muscles
Dorsal: first caudal vertebrae
Ventral: ischiatic arch

28
Q

What are the borders of the pelvic inlet?

A

Lateral: arcuate line
Dorsal: promonotory of sacrum
Ventral: pecten of pubis

29
Q

superficial digital flexor

A

O: lateral supracondylar tuberosity of the femur

I: tuber calcanei; plantar aspect of the base of the middle phalanx of digits 2, 3, 4, and 5.

Action: flex digits; extend tarsus; flex stifle

  • subcutaneous calcanean bursa
  • *intertendinous calcanean bursa**
30
Q

deep digital flexor

A

O: proximal tibia and fibula and adjacent interosseus membrane between the two

I: plantar aspect of the base of the distal phalanx of digits 1-5

Action: flex digits; extend tarsus

has a lateral (passing over sustentaculum tali and held down by flexor retinaculum) and medial head

31
Q

popliteus

A

O: lateral condyle of femur

I: proximal and caudomedial aspect of femur

Action: flex stifle; rotate leg (crus) medially

Anatomy (9 decks)

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