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Anatomy > Pelvis > Flashcards

Pelvis Flashcards

1
Q

Anterior tilting

A

changes in degree of lumbar lordosis

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2
Q

Lateral tilting

A

changes in degree of hip abduction

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3
Q

Ischiofemoral Ligament

A

reinforces fibrous capsule posteriorly from ischial portion of acetabular rim to base of greater trochanter
-resists hyperextension

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4
Q

The lumbar plexus lies between:

A

-psoas major and quadratus lumborum, in psoas compartment

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5
Q

Iliacus origin

A

Upper 2/3 of iliac fossa of ilium, internal lip of iliac crest, lateral aspect of sacrum, ventral sacroiliac ligament, and lower portion of iliolumbar ligament

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6
Q

Iliacus insertion

A

lesser trochanter

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7
Q

Iliacus action

A

flex the torso and thigh with respect to each other

also external rotation

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8
Q

Iliacus innervation

A

muscular branch of femoral nerve

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9
Q

Psoas major and minor origin

A

Anterior surfaces and lower borders of transverse processes of L1 - L5 and bodies and discs of T12 - L5

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10
Q

Psoas major and minor insertion

A

lesser trochanter

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11
Q

Psoas major and minor action

A

flex the torso and thigh with respect to each other

also external rotation

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12
Q

Psoas major and minor innervation

A

direct fibers of L1-L3 lumbar plexus

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13
Q

Quadratus Lumborum origin

A

iliac crest posterior inner lip

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14
Q

Quadratus Lumborum insertinon

A

upper 4 lumbar vertebrae transverse processes, 12th rib lower border

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15
Q

Quadratus Lumborum action

A

lateral flexion (right performs right, left performs left)

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16
Q

Quadratus Lumborum innervation

A

ventral rami of 12th throacic and upper three or four lumbar spinal nerve

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17
Q

Gluteus max origin

A

Posterior aspect of dorsal ilium posterior to posterior gluteal line, posterior superior iliac crest, posterior inferior aspect of sacrum and coccyx, and sacrotuberous ligament

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18
Q

Gluteus max insertion

A

Primarily in fascia lata at the iliotibial band; also into the gluteal tuberosity on posterior femoral surface

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19
Q

Gluteus max action

A

Major extensor of hip joint, assists in laterally rotating the thigh; upper and middle third section of the muscle are abductors

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20
Q

Gluteus max innervation

A

inferior gluteal nerve

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21
Q

Gluteus med origin

A

dorsal ilium inferior to iliac crest

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22
Q

Gluteus med insertion

A

lateral and superior surfaces of greater trochanter

23
Q

Gluteus med action

A

Major abductor of thigh; anterior fibers help to rotate hip medially; posterior fibers help to rotate hip laterally

24
Q

Gluteus med innervation

A

superior gluteal nerve

25
Q

Gluteus min. origin

A

Dorsal ilium between inferior and anterior gluteal lines; also from edge of greater sciatic notch

26
Q

Gluteus min insertion

A

anterior surface of greater trochanter

27
Q

Gluteus min action

A

abducts and medially rotates the hip joint

28
Q

Gluteus min innveration

A

superior gluteal nerve

29
Q

Piriformis origin

A

Anterior surface of lateral process of sacrum and gluteal surface of ilium at the margin of the greater sciatic notch

30
Q

Piriformis insertion

A

superior border of greater trochanter

31
Q

Piriformis action

A

Lateral rotator of the hip joint; also helps abduct the hip if it is flexed

32
Q

Piriformis innervation

A

piriformis nerve

33
Q

Superior Gemellus origin

A

ischial spine

34
Q

Superior Gemellus insertion

A

medial surface of greater trochanter of femur, in common with obturator internus

35
Q

Superior Gemellus action

A

rotates the thigh laterally, also helps abduct the flexed thigh

36
Q

Superior Gemellus innervation

A

nerve to the obturator internus and superior gemellus

37
Q

Inferior gemellus origin

A

Posterior portions of ischial tuberosity and lateral obturator ring

38
Q

Inferior gemellus insertion

A

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

39
Q

Inferior gemellus action

A

Rotates the thigh laterally; also helps abduct the flexed thigh

40
Q

Inferior gemellus innervation

A

Nerve to the obturator internus and inferior gemellus – a branch of the sacral plexus (L5, S1)

41
Q

Obturator Internus origin

A

Internal surface of obturator membrane and posterior bony margins of obturator foramen

42
Q

Obturator Internus insertion

A

Medial surface of greater trochanter of femur, in common with superior and inferior gemelli

43
Q

Obturator internus action

A

Rotates the thigh laterally; also helps abduct the thigh when it is flexed

44
Q

Obturator internus innervation

A

Nerve to the obturator internus and superior gemellus – a branch of the sacral plexus (L5, S1)

45
Q

Quadratus Femoris origin

A

lateral margin of obturator ring above ischial tuberosity

46
Q

Quadratus Femoris insertion

A

Quadrate tubercle and adjacent bone of intertrochanteric crest of proximal posterior femur

47
Q

Quadratus femoris action

A

rotates the hip laterally; also helps adduct the hip

48
Q

Quadratus femoris innervation

A

Quadratus femoris branch of nerve to the quadratus femoris and inferior gemellus (L5, S1)

49
Q

Obturator externus origin

A

External surface of obturator membrane and anterior bony margins of obturator foramen

50
Q

Obturator externus insertion

A

Posteromedial surface of greater trochanter of femur

51
Q

Obturator externus action

A

Rotates the thigh laterally; also helps adduct thigh

52
Q

Obturator externus innervation

A

obturator

53
Q

Femoral triangle

A 
SAIL
s=sartorius
a=adductor longus
il=inguinal ligament
NAVEL
n=nerve
a=artery
v=vein
e=empty space
l=lymph nodes

Anatomy (16 decks)

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