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Lower Limb Anatomy > Muscles of the Iliac Region and Gluteal Region > Flashcards

Muscles of the Iliac Region and Gluteal Region Flashcards

1
Q

Psoas major origin

A

Ventral surfaces and bases of transverse processes of all Lumbar vertebrae and intervertebral discs of T12-L5

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2
Q

Psoas major insertion

A

Apex of lesser trochanter medial to insertion of iliacus

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3
Q

Psoas major innervation

A

L2-L3

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4
Q

Psoas major function

A

Flex hip and lumbar spine

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5
Q

Psoas minor origin

A

T12-L1 and disc between them

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6
Q

Psoas minor insertion

A

Iliopectineal eminence and iliac fossa

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7
Q

Psoas minor innervation

A

L1

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8
Q

Psoas minor function

A

Flex spine

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9
Q

Iliacus origin

A

Iliac fossa from ASIS/AIIS to superolateral ala of sacrum

Anterior sacroiliac and iliolumbar ligaments

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10
Q

Iliacus insertion

A

Base of lesser trochanter

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11
Q

Iliacus innervation

A

Femoral nerve

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12
Q

Iliacus function

A

Flex hip

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13
Q

Gluteus maximus origin

A

Posterior gluteal line

Superior surface of sacrum and coccyx

Sacrotuberous ligament

Gluteal aponeurosis

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14
Q

Gluteus medius insertion

A

Superficial proximal fibers on IT band

Deep fibers on gluteal tuberosity

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15
Q

Gluteus medius innervation

A

INferior gluteal nerve

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16
Q

Gluteus medius function

A

Extend, laterally rotate, and abduct thigh

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17
Q

Gluteus medius origin

A

Between anterior and posterior gluteal lines of ilium

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18
Q

Gluteus medius insertion

A

Oblique bony ridge on lateral surface of greater trochanter

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19
Q

Gluteus medius innervation

A

Superior gluteal nerve

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20
Q

Gluteus medius function

A

Abduct and medially rotate thigh

Flex and medially rotate hip (anterior fibers)

Laterally rotate hip (posterior fibers)

21
Q

Gluteus minimus origin

A

Between anterior and inferior gluteal lines and edge of greater sciatic notch

22
Q

Gluteus minimus insertion

A

Anterior border of greater trochanter

23
Q

Gluteus minimus innervation

A

Superior gluteal nerve

24
Q

Gluteus minimus function

A

Medially rotate and extend hip

Weak flexor

25
Q

Gluteus medius and minimus functions in gait

A

Stabilize pelvis

26
Q

Tensor fascia latae origin

A

ANterior end of the iliac crest near ASIS

27
Q

Tensor fascia latae insertion

A

IT tract slightly distal to greater trochanter

28
Q

Tensor fascia latae innervation

A

Superior gluteal nerve

29
Q

Tensor fascia latae function

A

Flex and medially rotate hip

30
Q

Piriformis origin

A

Anterior surface of 1-4 sacral vertebrae between foramina

31
Q

Piriformis insertion

A

Passes through greater sciatic foramen to insert on superior border of greater trochanter

32
Q

Piriformis innervation

A

S2 (sometimes S1 as well)

33
Q

Piriformis function

A

Laterally rotate and abduct a flexed hip

34
Q

Obturator internus origin

A

Inside surface of superior and inferior pubic rami

Ischial ramus

Obturator membrane

35
Q

Obturator internus insertion

A

Medial surface of the greater trochanter anterior to trochanteric fossa

36
Q

Obturator internus innervation

A

Nerve to obturator internus

37
Q

Obturator internus function

A

Laterally rotate and extend hip

38
Q

Superior gemellus origin

A

Outer surface of ischial spine

39
Q

Superior gemellus insertion

A

Fuses with fibers of obturator internus to insert on medial surface of greater trochanter

40
Q

SUperior gemellus innervation

A

Nerve to obturator internus

41
Q

Superior gemellus function

A

Laterally rotate hip

42
Q

Inferior gemellus origin

A

Upper part of ischial tuberosity

43
Q

Inferior gemellus insertion

A

Medial surface of greater trochanter of femur in common with obturator internus

44
Q

Inferior gemellus innervation

A

Nerve to quadratus femoris

45
Q

Inferior gemellus function

A

Laterally rotate hip

46
Q

Quadratus femoris origin

A

External margin (lateral edge) of ischial tuberosity

47
Q

Quadratus femoris insertion

A

Linea quadrata and quadrate tubercle of femur

48
Q

Quadratus femoris innervation

A

Nerve to quadratus femoris

49
Q

Quadratus femoris function

A

Adduct and laterally rotate hip

Lower Limb Anatomy (15 decks)

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