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ESA 2 > MSK Session 6b: anterior thigh > Flashcards

MSK Session 6b: anterior thigh Flashcards

1
Q

General function of anterior thigh mucles?

A

Flex at hip, extend at knee

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2
Q

Psoas major origin?

A

Transverse processes of all lumbar vertebrae

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3
Q

Psoas major insertion?

A

Lesser trochanter of femur

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4
Q

Psoas major innervation?

A

Anterior rami of L1,2,3

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5
Q

Psoas major action?

A

Flexes at hip
Assists in lateral rotation
Stabilises hip-postural

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6
Q

What is iliopsoas?

A

The name given to the psoas major and iliacus muscles, because they converge to one tendon

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7
Q

Iliacus origin?

A

Iliac crest, iliac fossa, ala of sacrum

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8
Q

Iliacus insertion?

A

Tendon of psoas major, lesser trochanter

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9
Q

Iliacus innervation?

A

Femoral nerve (L2,L3)

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10
Q

Iliacus action?

A

Flexes at hip
Assists in lateral rotation
Stabilises hip

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11
Q

Psoas minor origin?

A

Sides&IVDs of T12-L5 vertebrae

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12
Q

Psoas minor insertion?

A

Pectineal line

Iliopubic arch

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13
Q

Psoas minor innervation?

A

Anterior rami of L1,L2

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14
Q

Psoas minor action?

A

Flex and stabilise hip

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15
Q

Pectineus form?

A

Flat quadrangular muscle, two layers (superficial and deep)

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16
Q

Pectineus origin?

A

Superior pubic ramus

17
Q

Pectineus insertion?

A

Pectineal line (just inferior to lesser trochanter)

18
Q

Pectineus innervation?

A

Femoral (L2, 3), and branch from obturator

19
Q

Pectineus action?

A

ADduction
Flexion at hip
Assists medial rotation

20
Q

Sartorius form?

A

Longest muscle in body, superficial, strap-like, runs lateral to medial

21
Q

Sartorius origin?

A

ASIS

22
Q

Sartorius insertion?

A

Superior part of the medial part of the tibia

23
Q

Sartorius innervation?

A

Femoral nerve (L2,L3)

24
Q

Sartorius action?

A

Flexion of thigh
ABduction hip
Lateral hip rotation
Flexes knee (medially rotates leg when knee flexed)

Produce the cross-legged sitting position

25
Q

Name the knee extensors

A 
Quadriceps femoris (4 heads):
Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius
26
Q

Quadriceps femoris innervation?

A

Femoral nerve (L2, L3, L4) (mainly 3 and 4)

27
Q

Quadriceps femoris insertion?

A
  1. Quadriceps tendon to base of patella
  2. Patellar ligament to tibial tuberosity
  3. VM and VL also attach to tibia and patella via aponeuroses
28
Q

Quadriceps femoris action?

A

Extend knee

RF also steadies hip and helps iliopsoas flex thigh

29
Q

Rectus femoris origin?

A

ASIS and ilium (superior to acetabulum)

30
Q

Vastus lateralis origin?

A

Greater trochanter and lateral lip of linea aspera

31
Q

Vastus medialis origin?

A

Intertrochanteric line and medial lip of linea aspera

The most medial of the quadriceps

32
Q

Vastus intermedius origin?

A

Anterior and lateral surfaces of femoral shaft

ESA 2 (58 decks)

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