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MSK > MSK Practical 3 > Flashcards

MSK Practical 3 Flashcards

1
Q

Iliacus

A

O: iliac fossa
I: lesser trochanter
A: flexion and lateral rotation of thigh
N: L2 L3 femoral Nerve

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2
Q

Psoas major

A

O: ant. vert bodies and transverse processes of TV12-LV5
I: lesser trochanter
A: flex and lat. rot. thigh not bearing weight; flexes and side bends trunk while bearing weight
N: L1–L3 ventral rami lumbar nn.

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3
Q

Sartorius

A

O: ASIS
I: medial tibia just below condyle with gracilis and semitendinosus at pes anserinus
A: flexion of thigh and leg; lateral rotation of thigh, medial rotation of leg, abducts lower limb if knee is locked
N: femoral n.

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4
Q

Rectus Femoris

A

O: AIIS
I: superior part of patella to tibial tuberosity via patellar ligament
A: flexion of thigh; extension of leg
N: Femoral N

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5
Q

Vastus Lateralis

A

O: greater trochanter and lateral lip of linea aspera
I: lateral patella; tibial tuberosity via patellar ligament
A: leg extension
N: : femoral n.

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6
Q

Vastus Medialis

A

O: Intertrochanteric line and medial lip of linea aspera
I: medial patella; tibial tuberosity via patellar ligament
A: leg extension; maintains proper patellar tracking
N: femoral N

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7
Q

Vastus Intermedius

A

O: Anterior and lateral surface of most of femoral shaft
I: deep surface of tendon of rectus femoris and other vastus mm. via aponeurosis
A: leg extension
N: femoral n.

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8
Q

Articularis Genu

A

deep portion of vastus intermedius
O: antero-inferior surface of femur
I: superior portion of synovial membrane of knee joint and wall of suprapatellar bursa
A: pulls synovial membrane superiorly during leg extension to prevent entrapment between patella and femur
N: Femoral N

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9
Q

Pectineus

A

O: pectineal line of pubis
I:pectineal line of femur (posterior and inferior to lesser trochanter)
A: flexion and adduction of thigh, assists in medial rotation of thigh
N: femoral n. and or obturator n

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10
Q

Adductor longus

A

O: anterior body of pubis
I: medial lip of linea aspera (middle part)
A: flexion and adduction of thigh, assists in medial rotation of thigh
N: : anterior division of obturator n.

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11
Q

Adductor Brevis

A

O: inferior pubic ramus
I: medial lip of linea aspera (upper half)
A: flexion and adduction of thigh, assists in medial rotation of thigh
I: anterior division of obturator n.

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12
Q

Adductor MAgnus adductor head

A

O: Adductor head- ischiopubic ramus
I:Adductor head- gluteal tuberosity, linea aspera, medial supracondylar line
A: adducts thigh, flexes and assists in medial thigh rotation
N: posterior division of obturator n.

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13
Q

Adductor magnus hamstring head

A

O: ischial tuberosity
I: adductor tubercle of femur
A:adducts thigh, extends and assists in medial thigh rotation
N: tibial n.

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14
Q

Gracilis

A

O: inferior pubic ramus near symphysis
I: medial tibia just below condyle with sartorius and semitendinosus at pes anserinus
A: adducts thigh, flexes and medially rotates leg
N: anterior division of obturator n.

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15
Q

Obturator externus

A

O: anterior margins of obturator foramen and membrane
I: trochanteric fossa of femur
A: lateral rotation of thigh
N: posterior division of obturator n.

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16
Q

Femoral Triangle boundaries

A

Superior: inguinal ligament

Medial: lateral border of adductor longus

Lateral: medial border of sartorius

Roof: deep fascia (fascia lata)

Floor: pectineus and iliopsoas

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17
Q

Femoral triangle contents

A 
Femoral n.
Femoral a. and branches
Femoral v.
Lymphatics
 (NAVL)
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18
Q

Adductor canal contents

A

Femoral a., v., femoral n. to vastus medialis, saphenous n.

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19
Q

Gluteus Maximus

A

O: Ilium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; sacrotuberous ligament
I: gluteal tuberosity and iliotibial tract (ITT)
A: extends thigh, lateral rotation of thigh; acts with ITT to stabilize knee
N: inferior gluteal n.

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20
Q

Gluteus Medius

A

O: Ilium between posterior and anterior gluteal lines
I: greater trochanter
A: abduction of thigh; posterior fibers assist gluteus maximus in lateral thigh rotation; anterior fibers assist gluteus minimus in medial thigh rotation and leveling sacral base when contralateral limb is raised off of ground
N: Superior gluteal N

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21
Q

Gluteus Minimus

A

O: Ilium between anterior and inferior gluteal lines
I: anterior surface of greater trochanter
A: abduction and medial rotation of thigh; assists gluteus medius in leveling sacral base
N: superior gluteal n.

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22
Q

Tensor fascia latae

A

O: Anterolateral iliac crest near ASIS
I: lateral tibial condyle via iliotibial tract
A: abducts, flexes, and medially rotates thigh; maintains extended knee
N: superior gluteal n.

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23
Q

Piriformas

A

O: anterior surface of sacrum
I: greater trochanter
A: abduction and lateral rotation of thigh
N: nerve to piriformis

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24
Q

Gemellus Superior

A

O: ischial spine
I: merges with tendon of obturator internus
A: lateral thigh rotation
N: nerve to obturator internus

25
Q

Obturator Internus

A

Origin: Internal surface of obturator membrane and margin of obturator foramen

Insertion: greater trochanter

Action: lateral rotation and abduction of thigh

Innervation: nerve to obturator internus

26
Q

Glemellus Inferior

A

Origin: ischial tuberosity near lesser sciatic notch

Insertion: merges with tendon of obturator internus

Action: lateral thigh rotation

Innervation: nerve to quadratus femoris

27
Q

Quadratus femoris

A

Origin: ischial tuberosity

Insertion: quadrate tubercle on intertrochanteric crest of femur

Action: lateral thigh rotation

Innervation: nerve to quadratus femoris

28
Q

Biceps Femoris long head

A

O: ischial tuberosity
I: lateral condyle of tibia, head of fibula
A: extend thigh, flex leg
N: tibial N

29
Q

Biceps Femoris short head

A

O: middle third lateral lip of linea aspera
I: lateral condyle of tibia, head of fibula
A: flex leg
N: common fibular N

30
Q

Semimembranosus

A

Origin: ischial tuberosity

Insertion: posterior surface of medial condyle on tibia

Action: extension of thigh and flexion of leg, medial rotation of leg

Innervation: tibial n.

31
Q

Semitendinosus

A

Origin: ischial tuberosity

Insertion: medial anterior surface of tibia inferior to medial condyle

Action: extension of thigh and flexion and medial rotation of leg when knee is flexed

Innervation: tibial n.

32
Q

Tibialis anterior

A

Origin: lateral condyle and superior half of lateral surface of tibia and interosseous membrane

Insertion: medial and inferior surfaces of medial cuneiform and base of 1st metatarsal

Action: dorsiflexion and inversion of foot

Innervation: deep fibular n.

33
Q

Extensor digitorum longus

A

Origin: anterior surface of fibula, lateral tibial condyle and interosseous membrane

Insertion: middle and distal phalanges of lateral four digits

Action: extend lateral four digits and dorsiflex foot

Innervation: deep fibular n.

34
Q

Fibularis Tertius

A

Origin: inferior third of anterior surface of fibula and interosseous membrane

Insertion: base of 5th metatarsal

Action: dorsiflex foot, aid in eversion of foot

Innervation: deep fibular n.

35
Q

Extensor Hallucis longus

A

Origin: middle part of anterior surface of fibula and interosseous membrane

Insertion: base of distal phalanx of hallux

Action: dorsiflex foot, extend hallux

Innervation: deep fibular n.

36
Q

Extensor Digitorum Brevis

A

Origin: dorsal surface of calcaneus

Insertion: base of proximal phalanx of hallux, bases of middle and distal phalanx digits 2-4 by lateral sides of extensor digitorum longus tendons

Action: extends digits 1-4

Innervation: deep fibular n.

37
Q

Fibularis longus

A

Origin: head and supero-lateral 2/3rds of lateral surface of fibula

Insertion: base of 1st metatarsal and medial cuneiform

Action: eversion and plantar flexion of foot

Innervation: superficial fibular n.

38
Q

Fibularis Brevis

A

Origin: distal lateral fibula

Insertion: lateral base of 5th metatarsal

Action: eversion and plantar flexion of foot

Innervation: superficial fibular n.

39
Q

Gastrocnemius

A

Origin: lateral and medial aspects of lateral/medial condyles of femur

Insertion: calcaneus with soleus and plantaris mm.

Action: plantar flex foot, flex leg

Innervation: tibial n.

40
Q

Soleus

A

Origin: posterior surface of head and proximal shaft of fibula, soleal line on upper tibia

Insertion: calcaneus with gastrocnemius and plantaris mm.

Action: plantar flexion of foot

Innervation: tibial n.

41
Q

Plantaris

A

Origin: Posterior surface of lateral condyle of femur

Insertion: calcaneus with gastrocnemius and soleus

Action: aids gastrocnemius to plantar flex foot

Innervation: tibial n.

42
Q

Popliteus

A

Origin: lateral surface of lateral femoral condyle

Insertion: proximal tibia superior to soleal line

Action: flex and medially rotate leg, when foot is fixed it laterally rotates femur to unlock knee

Innervation: tibial n.

43
Q

Flexor hallucis Longus

A

Origin: distal 2/3 of posterior surface of fibula and interosseous membrane

Insertion: base of distal phalanx of hallux

Action: flexes hallux, plantar flexes foot

Innervation: tibial n.

44
Q

Flexor Digitorum Longus

A

Origin: Posterior surface of middle of tibia

Insertion: base of distal phalanx of digits 2-5

Action: flexes digits 2-5, plantar flexion of foot

Innervation: tibial n.

45
Q

Tibialis Posterior

A

Origin: posterior surface of upper tibia and fibula, interosseous membrane

Insertion: bases of metatarsals 2-4, navicular, all cuneiforms and sustentaculum tali

Action: inversion and plantar flexion of foot

Innervation: tibial n.

46
Q

Tibialis Anterior

A

Origin: lateral condyle and superior half of lateral surface of tibia and interosseous membrane

Insertion: medial and inferior surfaces of medial cuneiform and base of 1st metatarsal

Action: dorsiflexion and inversion of foot

Innervation: deep fibular n.

47
Q

Extensor digitorum longus

A

Origin: anterior surface of fibula, lateral tibial condyle and interosseous membrane

Insertion: middle and distal phalanges of lateral four digits

Action: extend lateral four digits and dorsiflex foot

Innervation: deep fibular n.

48
Q

fibularis tertius

A

Origin: inferior third of anterior surface of fibula and interosseous membrane

Insertion: base of 5th metatarsal

Action: dorsiflex foot, aid in eversion of foot

Innervation: deep fibular n.

49
Q

extensor hallucis longus

A

Origin: middle part of anterior surface of fibula and interosseous membrane

Insertion: base of distal phalanx of hallux

Action: dorsiflex foot, extend hallux

Innervation: deep fibular n.

50
Q

extensor digitorum brevis

A

Origin: dorsal surface of calcaneus

Insertion: base of proximal phalanx of hallux, bases of middle and distal phalanx digits 2-4 by lateral sides of extensor digitorum longus tendons

Action: extends digits 1-4

Innervation: deep fibular n.

51
Q

fibularis longus

A

Origin: head and supero-lateral 2/3rds of lateral surface of fibula

Insertion: base of 1st metatarsal and medial cuneiform

Action: eversion and plantar flexion of foot

Innervation: superficial fibular n.

52
Q

fibularis brevis

A

Origin: distal lateral fibula

Insertion: lateral base of 5th metatarsal

Action: eversion and plantar flexion of foot

Innervation: superficial fibular n.

53
Q

gastrocnemius

A

Origin: lateral and medial aspects of lateral/medial condyles of femur

Insertion: calcaneus with soleus and plantaris mm.

Action: plantar flex foot, flex leg

Innervation: tibial n.

54
Q

soleus

A

Origin: posterior surface of head and proximal shaft of fibula, soleal line on upper tibia

Insertion: calcaneus with gastrocnemius and plantaris mm.

Action: plantar flexion of foot

Innervation: tibial n.

55
Q

plantaris

A

Origin: Posterior surface of lateral condyle of femur

Insertion: calcaneus with gastrocnemius and soleus

Action: aids gastrocnemius to plantar flex foot

Innervation: tibial n.

56
Q

popliteus

A

Origin: lateral surface of lateral femoral condyle

Insertion: proximal tibia superior to soleal line

Action: flex and medially rotate leg, when foot is fixed it laterally rotates femur to unlock knee

Innervation: tibial n.

57
Q

flexor hallucis longus

A

Origin: distal 2/3 of posterior surface of fibula and interosseous membrane

Insertion: base of distal phalanx of hallux

Action: flexes hallux, plantar flexes foot

Innervation: tibial n.

58
Q

flexor digitorum longus

A

Origin: Posterior surface of middle of tibia

Insertion: base of distal phalanx of digits 2-5

Action: flexes digits 2-5, plantar flexion of foot

Innervation: tibial n.

59
Q

tibialis posterior

A

Origin: posterior surface of upper tibia and fibula, interosseous membrane

Insertion: bases of metatarsals 2-4, navicular, all cuneiforms and sustentaculum tali

Action: inversion and plantar flexion of foot

Innervation: tibial n.

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