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Gross Anatomy > Muscle actions, origins, insertions - Pelvic limb > Flashcards

Muscle actions, origins, insertions - Pelvic limb Flashcards

1
Q

Tensor fasciae latae

A

Origin: Tuber coxae

Insertion: Fascia lata

Action: Tenses fascia lata, flex coxal joint, extends genual joint

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2
Q

Superficial gluteal

A

Origin: sacrotuberous ligament

Insertion: Third trochanter

Action: Abduct the limb, minor extension of the coxal joint

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3
Q

Middle gluteal

A

Origin: Gluteal surface of ilium

Insertion: Greater trochanter

Action: Extend coxal joint, abduct limb, rotate pelvic limb medially

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4
Q

Piriformis

A

Origin: Sacrum and first caudal vertebrae

Insertion: Greater trochanter

Action: Extend coxal joint

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5
Q

Deep Gluteal

A

Origin: Body of ilium and ischiatic spine

Insertion: Greater trochanter

Action: Abduct limb and extend coxal joint

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6
Q

Articularis coxae (ID only)

A

Origin: Ilium

Insertion: neck of femur

Action: adjusts & protects coxal joint capsule

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7
Q

External obturator

A

Origin: Ventral aspect of ox coxae by obturator foramen

Insertion: Trochanteric fossa

Action: Adduct and/or rotate limb laterally at coxal joint

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8
Q

Internal obturator

A

Origin: dorsal aspect of os coxae by obturator foramen

Insertion: Trochanteric fossa

Action: Rotate limb laterally at coxal joint

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9
Q

Gemelli

A

Origin: Lateral aspect of ischium

Insertion: Trochanteric fossa

Action: Rotate limb laterally at coxal joint

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10
Q

Quadratus femoris

A

Origin: ventral aspect of ischium

Insertion: caudal femur by trochanteric fossa

Action: Extend coxal joint, adduct and/or rotate limb laterally at coxal joint

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11
Q

Biceps femoris

A

Origin: Ischiatic tuberosity and sacrotuberous ligament

Insertion: patella, tibia, calcaneon tuber

Action: Extend coxal joint, extend tarsocrural joint

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12
Q

Semitendinosus

A

Origin: Ischiatic tuberosity

Insertion: tibia and calcaneon tuber

Action: extend coxal joint, extend tarsocruraljoint

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13
Q

Semimembranosus

A

Origin: Ischiatic tuberosity

Insertion: distal femur and proximal tibia

Action: Extend coxal joint, variable action on genual joint

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14
Q

Sartorius

A

Origin: Crest of ilium

Insertion: Medial aspect of genual region

Action: Flex coxal joint, extend genual joint (cranial head)

Flex genual joint (caudal head)

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15
Q

Gracilis

A

Origin: Pelvic symphysis

Insertion: medial aspect of genual region

Action: adduct limb, extend coxal joint, flex genual joint, extend tarsocrural joint

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16
Q

Pectineus

A

Origin: Iliopubic eminence

Insertion: Distal body of femur

Action: adduct limb

17
Q

Adductor

A

Origin: ventral surface of ox coxae

Insertion: caudal surface of femur

Action: adduct the limb, extend coxal joint

18
Q

Quadriceps femoris - rectus femoirs

A

Origin: Ilium

Insertion: Tibial tuberosity

Action: Flex coxal joint, extend genual joint

19
Q

Quadriceps femoris - vastus lateralis, intermedius, medialis

A

Origin: proximal femur

Insertion: tibial tuberosity

Action: extend genual joint

20
Q

Iliopsoas

A

Origin: Ilium, lumbar vertebrae

Insertion: Lesser trochanter

Action: Flex coxal joint

21
Q

Cranial tibial

A

Origin: Lateral aspect of proximal tibia

Insertion: Plantar base of metatarsals 1 and 2

Action: Flex tarsocrurual joint and rotate paw laterally

22
Q

Long digital extensor

A

Origin: Extensor fossa

Insertion: Extensor processes of distal phalanges

Action: Extend genual joint, flex tarsocrural joint, extend digital joint

23
Q

Lateral digital extensor

A

Origin: Proximal aspect of fibula

Insertion: Lateral digits 3 - 5

Action: Flex tarsocrural joint and extend digital joints

24
Q

Fibularis longus

A

Origin: Laterally collateral ligament of genual joint

Insertion: 4th tarsal bone and plantar base of metatarsals

Action: Flex tarsocrural joint, rotate paw medially

25
Q

Gastrocnemius

A

Origin: Distal caudal femur

Insertion: Calcaneon tuber

Action: Flex genual joint, extend tarsocrural joint

26
Q

Superficial digital flexor

A

Origin: Lateral supracondylar tuberosity of femur

Insertion: Calcaneon tuber and bases of middle phalanges

Action: Flex genual joint, extend tarsocrural joint, flex metatarsophalangeal and proximal phalangeal joints

27
Q

Deep digital flexor

A

Origin: Proximal caudal aspect of tibia and fibula

Insertion: Flexor tubercle of distal phalanges

Action: Extend tarsocrural joint, flex digital joint

28
Q

Popliteus

A

Origin: popliteal fossa

Insertion: proximal caudal aspect of tibia

Action: flex genual joint, rotate leg medially

29
Q

What 5 muscles make up the common calcaneon tendon?

A

Biceps femoris, gastrocnemius, gracilis, semitendinosus, superficial digital flexor

Gross Anatomy (28 decks)

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