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MSAK Review > Lower Limb > Flashcards

Lower Limb Flashcards

1
Q

ILIACUS

A 
O: internal area of ilium, upper 2/3 of iliac fossa, AIIS & sacral ala
I: lesser trochanter of the femur
N: femoral nerve
K:
1) Flexion of the thigh at the hip joint
2) Lateral rotation of the thigh " " 
3) Anteriorly tilts the pelvis
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2
Q

PSOAS MAJOR

A 
O: anterolateral surfaces of the bodies of T12-L5 & the discs between them, TVP's of L1-L5
I: lesser trochanter of the femur
N: lumbar plexus (L1-L3)
K:
1) Lateral rotation of thigh @ hip joint
2) Flexion of thigh " "
3) Posteriorly tilts the pelvis
4) Lateral flexion of trunk @ spinal joints
5) Elevation of same-side pelvis
6) Flexion of the trunk @ spinal joints
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3
Q

TFL

A 
O: ASIS & anterior iliac crest
I: ITB 1/3 of the way down
N: superior gluteal nerve
K:
1) Flexion of the thigh @ hip joint
2) Medial rotation " "
3) Abduction " "
4) Depression of the same-side pelvis @ hip joint
5) Anteriorly tilts the pelvis
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4
Q

SARTORIUS

A 
O: ASIS
I: Pes Anserine tendon
N: femoral nerve
K:
1) Abduction of thigh @ hip
2) Flexion of thigh @ hip
3) Lateral rotation of thigh @ hip
4) Flexion of leg at knee joint 
5) Medial rotation of leg at knee joint
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5
Q

ADDUCTOR LONGUS

A 
O: pubis
I: middle 1/3 of medial lip of linea aspera
N: obturator nerve
K:
1) Adduction of thigh @ hip
2) Flexion " "
3) Anteriorly tilts the pelvis
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6
Q

GRACILIS

A 
O: pubis
I: Pes Anserine tendon
N: obturator nerve
K:
1) Adduction of thigh @ hip joint
2) Flexion of thigh " "
3) Flexion of leg @ knee joint
4) Medial rotation of leg @ knee joint
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7
Q

ADDUCTOR MAGNUS

A

O: (1) inferior pubic ramus & ramus of ischium, (2) ischial tuberosity
I: (1) gluteal tuberosity, linea aspera, medial supracondylar line of femur, (2) adductor tubercle of femur
N: (1) obturator nerve & (2) sciatic nerve
K:
1) Adduction of thigh @ hip joint
2) Extension “ “
3) Flexion “ “
4) Posteriorly tilts the pelvis

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8
Q

ADDUCTOR BREVIS

A 
O: inferior ramus of pubis
I: proximal 1/3 of linea aspera
N: obturator nerve
K:
1) Adduction of thigh @ hip joint
2) Flexion " " 
3) Anteriorly tilts the pelvis
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9
Q

PECTINEUS

A 
O: pectineal line of pubis
I: pectineal line of proximal posterior shaft of femur
N: femoral nerve
K:
1) Adduction of thigh @ hip joint
2) Flexion of thigh @ hip joint
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10
Q

GLUTEUS MAXIMUS

A 
O: posterior iliac crest, posterolateal sacrum, anterior sacrotuberous ligament, thoracolumbar fascia
I: ITB & gluteal tuberosity of femur
N: inferior gluteal nerve
K:
1) Extension of thigh @ hip joint
2) Maintenance of erect posture
3) Lateral rotation of thigh @ hip joint
4) Adduction & abduction of thigh @ hip joint
5) Posteriorly tilts the pelvis
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11
Q

GLUTEUS MEDIUS

A

O: inferior to iliac crest between anterior and posterior gluteal lines
I: greater trochanter of the femur
N: superior gluteal nerve
K:
1) Everything possible at the hip EXCEPT adduction

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12
Q

GLUTEUS MINIMUS

A

O: ilium between anterior and inferior gluteal lines
I: greater trochanter of the femur
N: superior gluteal nerve
K:
1) Everything possible at the hip EXCEPT adduction

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13
Q

PIRIFORMIS

A

O: anterolateral sacrum & anterior sacrotuberous ligament
I: greater trochanter of the femur
N: nerve to piriformis (L5, S1, S2)
K:
1) Lateral rotation of thigh @ hip joint
2) Horizontal abduction when thigh is flexed

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14
Q

SUPERIOR GEMELLUS

A 
O: ischial spine
I: greater trochanter of the femur
N: nerve to obturator internus
K:
1) Lateral rotation of thigh @ hip joint
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15
Q

OBTURATOR INTERNUS

A 
O: internal surface of obturator foramen
I: greater trochanter of the femur
N: nerve to obturator internus (L5, S1)
K: 
1) Lateral rotation of thigh @ hip joint
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16
Q

INFERIOR GEMELLUS

A 
O: ischial tuberosity
I: greater trochanter of the femur
N: nerve to quadratus femoris (L5, S1)
K:
1) Lateral rotation of the thigh @ hip joint
17
Q

OBTURATOR EXTERNUS

A

O: external surface of obturator foramen
I: trochanteric fossa of the femur
N: obturator nerve
K:
1) Lateral rotation of the thigh @ hip joint
2) Adduction of the thigh at the hip joint

18
Q

QUADRATUS FEMORIS

A 
O: ischial tuberosity
I: intertrochanteric crest of the femur
N: nerve to quadratus femoris (L5 & S1)
K:
1) Lateral rotation of the thigh @ hip joint
19
Q

RECTUS FEMORIS

A 
O: ASIS & just superior to the brim of the acetabulum
I: tibial tuberosity via quads tendon
N: femoral nerve (L2-L4)
K:
1) Flexion of the thigh @ hip joint
2) Extension of the leg @ knee joint
3) Anteriorly tilts the pelvis
20
Q

VASTUS LATERALIS

A 
O: lateral lip of the linea aspera of the femur, intertrochanteric line & gluteal tuberosity of the femur
I: tibial tuberosity via quads tendon
N: femoral nerve (L2-L4)
K:
1) Extension of the leg @ knee joint
21
Q

VASTUS MEDIALIS

A 
O: medial lip of the linea aspera, intertrochanteric line & medial supracondylar line of the femur
I: tibial tuberosity via quads tendon
N: femoral nerve (L2-L4)
K:
1) Extension of the leg @ knee joint
22
Q

VASTUS INTERMEDIUS

A 
O: anterior/lateral surfaces of the femur & lateral lip of the linea aspera
I: tibial tuberosity via quads tendon
N: femoral nerve (L2-L4)
K:
1) Extension of the leg @ knee joint
23
Q

BICEPS FEMORIS

A

O: (L) ischial tuberosity & sacrotuberous ligament, (S) lateral supracondylar ridge of the femur
I: head of the fibula & lateral tibial condyle
N: sciatic (tibial & common fibular)
K:
1) Extension of the thigh @ hip joint
2) Flexion of the leg @ knee joint
3) Lateral rotation of the leg @ knee joint
4) Posteriorly tilts the pelvis

24
Q

SEMITENDINOSUS

A 
O: ischial tuberosity
I: Pes Anserine tendon
N: sciatic nerve
K:
1) Extension of the thigh at the hip joint
2) Medial rotation of the leg @ knee joint
3) Flexion of leg @ knee joint
4) Posteriorly tilts the pelvis
25
Q

SEMIMEMBRANOSUS

A

O: ischial tuberosity
I: posterior surface of medial condyle of tibia
N: sciatic nerve
K:
1) Extension of the thigh at the hip joint
2) Medial rotation of the leg @ knee joint
3) Flexion of leg @ knee joint
4) Posteriorly tilts the pelvis

26
Q

TIBIALIS ANTERIOR

A 
O: proximal 2/3 of anterior tibia & adjacent interosseous membrane, lateral tibial condyle
I: 1st metatarsal & medial cuneiform
N: deep fibular nerve
K:
1) Inversion @ subtalar
2) Dorsiflexion @ talocrural
27
Q

EXTENSOR DIGITORUM LONGUS

A

O: proximal 2/3 of fibula, proximal 1/3 of interosseous membrane & lateral tibial condyle
I: dorsal surface of toes 2-5 (middle & distal phalanges) via their DDE
N: deep fibular nerve
K:
1) Extension of toes 2-5 @ all joints

28
Q

EXTENSOR HALLUCIS LONGUS

A

O: middle 1/3 of anterior fibula & adjacent interosseous membrane
I: dorsal surface of distal phalanx of the hallux
N: deep fibular nerve
K:
1) Extension of the hallux @ all joints

29
Q

FIBULARIS LONGUS

A

O: proximal 2/3 of lateral fibula & fibular head
I: medial cuneiform & 1st metatarsal
N: superficial fibular nerve
K:
1) Eversion of foot @ subtalar joint
2) Plantarflexion of foot @ talocrural joint

30
Q

FIBULARIS BREVIS

A 
O: distal 1/3 of lateral fibula
I: base of 5th metatarsal
N: superficial fibular nerve
K:
1) Eversion of foot @ subtalar joint
2) Plantarflexion of foot @ talocrural joint

MSAK Review (5 decks)

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