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Tuesday 6/23 > Anterior and medial thigh > Flashcards

Anterior and medial thigh Flashcards

1
Q

What is the insertion of iliopsoas?

A

Lesser trochanter

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2
Q

What is the innervation of iliopsoas?

A

Psoas major: direct branches from the lumbar plexus (psoas) (L2-L4)
Iliacus: femoral n. (L2-L4)

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3
Q

What are the actions of iliopsoas?

A

Hip joint: flexion and external rotation
Lumbar spine: unilateral contraction (with the femur fixed) bends the trunk laterally to the same side; bilateral contraction raises the trunk from the supine position

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4
Q

What is the origin of sartorius?

A

Anterior superior iliac spine

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5
Q

What is the insertion of sartorius?

A

Medial to the tibial tuberosity (together with gracilis and semitendinosus)

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6
Q

What is the innervation of sartorius?

A

Femoral n. (L2, L3)

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7
Q

What are the actions of sartorius?

A

Hip joint: flexion, abduction, and external rotation

Knee joint: flexion and internal rotation

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8
Q

What is the origin of rectus femoris?

A

Anterior inferior iliac spine, acetabular roof of hip joint

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9
Q

What is the insertion of rectus femoris?

A

Tibial tuberosity (via patellar ligament)

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10
Q

What is the innervation of rectus femoris?

A

Femoral n. (L2-L4)

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11
Q

What are the actions of rectus femoris?

A

Hip joint: flexion

Knee joint: extension

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12
Q

What is the origin of vastus medialis?

A

Linea aspera (medial lip), intertrochanteric line (distal part)

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13
Q

What is the insertion of vastus medialis?

A

Both sides of tuberosity on the medial and lateral condyles (via the medial and longitudinal patellar retinacula)

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14
Q

What is the innervation of vastus medialis?

A

Femoral n. (L2-L4)

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15
Q

What are the actions of vastus medialis?

A

Knee joint: extension

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16
Q

What is the origin of vastus lateralis?

A

Linea aspera (lateral lip), greater trochanter (lateral surface)

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17
Q

What is the insertion of vastus lateralis?

A

Both sides of tuberosity on the medial and lateral condyles (via the medial and longitudinal patellar retinacula)

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18
Q

What is the innervation of vastus lateralis?

A

Femoral n. (L2-L4)

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19
Q

What are the actions of vastus lateralis?

A

Knee joint: extension

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20
Q

What is the origin of vastus intermedius?

A

Femoral shaft (anterior side)

21
Q

What is the insertion of vastus intermedius?

A

Tibial tuberosity (via patellar ligament)

22
Q

What is the innervation of vastus intermedius?

A

Femoral n. (L2-L4)

23
Q

What are the actions of vastus intermedius?

A

Knee joint: extension

24
Q

What is the origin of pectineus?

A

Pecten pubis

25
Q

What is the insertion of pectineus?

A

Femur (pectineal line and the proximal linea aspera)

26
Q

What is the innervation of pectineus?

A

Femoral n., obturator n. (L2, L3)

27
Q

What are the actions of pectineus?

A

Hip joint: adduction, external rotation, and slight flexion

Stabilizes the pelvis in the coronal and sagittal planes

28
Q

What is the origin of obturator externus?

A

Outer surface of the obturator membrane and its bony boundaries

29
Q

What is the insertion of obturator externus?

A

Trochanteric fossa of the femur

30
Q

What is the innervation of obturator externus?

A

Obturaotr n. (L3, L4)

31
Q

What are the actions of obturator externus?

A

Hip joint: adduction and external rotation

Stabilizes the pelvis in the sagittal plane

32
Q

What is the origin of adductor longus?

A

Superior pubic ramus and anterior side of the pubic symphysis

33
Q

What is the insertion of adductor longus?

A

Femur (linea aspera, medial lip in the middle third of the femur)

34
Q

What is the innervation of adductor longus?

A

Obturator n. (L2-L4)

35
Q

What are the actions of adductor longus?

A

Hip joint: adduction and flexion (up to 70 degrees); extension (past 80 degrees of flexion)
Stabilizes the pelvis in the coronal and sagittal planes

36
Q

What is the origin of adductor brevis?

A

Inferior pubic ramus

37
Q

What is the insertion of adductor brevis?

A

Femur (linea aspera, medial lip in the proximal one third of the femur); pectineal line

38
Q

What is the innervation of adductor brevis?

A

Obturator n. (L2, L3)

39
Q

What are the actions of adductor brevis?

A

Hip joint: adduction and flexion (up to 70 degrees); extension (past 80 degrees of flexion)
Stabilizes the pelvis in the coronal and sagittal planes

40
Q

What is the origin of adductor magnus?

A

Inferior pubic ramus, ischial ramus, and ischial tuberosity

41
Q

What is the insertion of adductor magnus?

A 
Deep part ("fleshy insertion"): medial lip of the linea aspera
Superficial part ("tendinous insertion"): adductor tubercle of the femur
42
Q

What is the innervation of adductor magnus?

A

Deep part: obturator n. (L2-L4)

Superficial part: Tibial n. (L4)

43
Q

What are the actions of adductor magnus?

A

Hip joint: adduction, extension, and slight flexion (the tendinous insertion is also active in internal rotation)
Stabilizes the pelvis in the coronal and sagittal plane

44
Q

What is the origin of gracilis?

A

Inferior pubic ramus below the pubic symphysis

45
Q

What is the insertion of gracilis?

A

Tibia (medial border of the tuberosity, along with the tendons of sartorius and semitendinosus)

46
Q

What is the innervation of gracilis?

A

Obturator n. (L2, L3)

47
Q

What are the actions of gracilis?

A

Hip joint: adduction and flexion

Knee joint: flexion and internal rotation

48
Q

What is the origin of iliopsoas?

A

Psoas major: Superficial: T12-L4 and associated intervertebral disks
(lateral surfaces)
Deep: L1-L5 vertebrae (transverse processes)
Iliacus: iliac fossa

Tuesday 6/23 (1 decks)

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