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MSK III > MM of Anterior and Medial Femoral Compartments > Flashcards

MM of Anterior and Medial Femoral Compartments Flashcards

1
Q

What are the anterior femoral mm

A

Iliopsoas, sartorius, quadriceps femoris and articularis genu

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2
Q

origin and insertion of psoas major

A

origin: anterior surfaces of bodies and transverse processes of last thoracic and all lumbar vertebrae
insertion: lesser trochanter of femur

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3
Q

action of psoas major

A

flexes and laterally rotates thigh

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4
Q

what innervates psoas major

A

ventral rami of L1 L2 L3

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5
Q

origin and insertion of iliacus m

A

origin: iliac fossa
insertion: with psoas major to lesser trochanter

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6
Q

action of iliacus m

A

flexion and lateral rotation of thigh

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7
Q

what innervates iliacus m

A

femoral n L2,L3

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8
Q

origin and insertion of sartorius

A

origin: ASIS
insertion: medial tibia below condyle- pes anserinus

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9
Q

what is the action of sartorius

A

flexion leg and rotates it medially
flexes thigh and rotates laterally
ABducts lower limb when knee is locked

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10
Q

what inn sartorius

A

femoral n

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11
Q

What are the quadriceps

A

Rectus femoris
vastus lateralis
vastus medialis
vastus intermedius

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12
Q

origin and insertion of Rectus femoris

A

origin: straight head from AIIS, reflected from superior brim of acetabulum
insertion: superior surface patella, to tibial tuberosity via ligament

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13
Q

origin and insertion of vastus lateralis

A

origin: anterolateral surface of most of the femur
insertion: lateral border of patella: to tibial tuberosity via ligament

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14
Q

origin and insertion of vastus medialis

A

origin: anteriomedial surface of most of femur
insertion: medial border of patella- to tibial tuberosity via ligament

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15
Q

what is the origin and insertion of vastus intermedius

A

origin: most of anterior surface of femur
insertion: deep surface of tendon of rectus femoris and other vastus mm via aponeurosis

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16
Q

what is the action of rectus femoris

A

flex thigh and extend leg

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17
Q

what is the action of vastus lateralis

A

extend leg

18
Q

action of vastus medialis

A

extend leg: assist in maintaining proper patellar tracking

19
Q

action of vastus intermedius

A

extend leg

20
Q

what inn quadriceps femoris

A

femoral n

21
Q

Where is the articularis genu

A

deepest portion of vastus intermedius

22
Q

origin insertion of articularis genu

A

origin: lower anterior surface of femur
insertion: upper portion of synovial membrane of knee joint

23
Q

what is the action of articularis genu

A

prevens synovial membrane from becoming trapped between patella and femur when the leg is extended

24
Q

what inn articularis genu

A

femoral n

25
Q

What are the medial femoral mm

A

Pectineus, ADductor longus, ADductor brevis, ADductor magnus, Gracilis, Obturator externus

26
Q

origin and insertion of pectineus

A

origin: superior pubic ramus (pectineal line of pubis)
insertion: posterior femur below lesser trochanter (pectineal line of femur)

27
Q

action of pectineus

A

ADduction, flexion and assists rotation of thigh

28
Q

inn of pectineus

A

femoral n, obturator n

29
Q

origin and insertion of ADductor longus

A

origin: front of pubis
insertion: middle portion of medial lip of linea aspera

30
Q

origin and insertion of ADductor brevis

A

origin: inferior pubic ramus
insertion: upper one half of medial lip of line aspera

31
Q

action of ADductor longus and brevis

A

ADduction, flexion and assists in rotation of thigh

32
Q

What inn both ADductor longus and brevis

A

anterior division of obturator n

33
Q

origin and insertion of ADductor magnus

A

origin: ischiopubic ramus
insertion: medial portion of femur below lesser trochanter to ADductor tubercle

34
Q

what is the action of ADductor magnus

A

entire m adducts thigh
proximal portion adducts, felxes and assists in rotation
distal portion adducts and extends and assists in rotation

35
Q

what inn the ADductor magnus

A

proximal portion- obturator (posterior division)

distal portion- tibial n

36
Q

What is found within ADductor magnus

A

the adductor hiatus

37
Q

origin and insertion of gracilis

A

origin: inferior pubic ramus near symphsis
insertion: medial below condyle on tibia- pes anserinus

38
Q

what is the action of gracilis

A

adducts thigh, flexes and medially rotates the leg

39
Q

what innervates gracilis

A

obturator n (anterior division)

40
Q

origin and insertion of obturator externus

A

origin: outer surface of obturator membrane and outer margins of the obturator foramen
insertion: trochanteric fossa

41
Q

what is the action of obturator externus

A

lateral rotation of thigh

42
Q

what innervates obturator externus

A

obturator n (posterior division)

MSK III (9 decks)

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