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ANP402 > 5 LE Hip + Gluteal Region > Flashcards

5 LE Hip + Gluteal Region Flashcards

1
Q

arthrology of hip (coxal) joint

A

ball and socket (synovial)

  • head of femur w/ acetabulum
  • more stable but less movable
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2
Q

hip socket

A

depth increased via fibrocartilagenous labrum + transverse acetabular ligament

**1/2 head of femur inside socket

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3
Q

ligaments of hip joint

A

iliofemoral
pubofemoral
ischiofemoral
ligament of the head of the femur

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4
Q

hip ligaments FCN

A

allow considerable flexion + limited extension/hyperextension due to twist of ligaments

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5
Q

blood supply to hip joint

A

circumflex femoral arteries

acetabular branch of obturator artery (services head of femur)

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6
Q

Legg-Calve-Perthes disease (LCP)

A

avascular necrosis of femur

  • result of loss of blood flow to femoral head
  • most common in children ages 2-14 (esp. 4-8 yrs)
  • treatment: brace to decrease motion y allow femur to grow by decreasing pressure on it

**may result in permanent femur deformities

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7
Q

gluteal region

A

posterior aspect of body

  • physically part of trunk but functionally part of lower limb
  • from iliac crest to gluteal fold
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8
Q

intergluteal cleft

A

“butt crack”

- separates buttocks which makes walking easier

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9
Q

greater sciatic foramen

A

passage for sciatic nerve

  • filled w/ periformis muscle (inferior sciatic)
  • part of gluteal region
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10
Q

lesser sciatic foramen

A

pudendal nerve + vessels

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11
Q

superficial muscles of gluteal region

A

ABDUCT thigh

gluteus maximus
gluteus medius
gluteus minimus
tensor fasciae latae

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12
Q

deep muscles of gluteal region

A

laterally rotates thigh + stablizes femoral head

piriformis
obturator internus
obturator externus
superior gemellus
infrior gemellus
quadratus femoris
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13
Q

gluteus maximus

A

superifical muscle of gluteal region

O: ilium + sacrum + coccyx + sacrotuberous ligament
I: IT band + gluteal tuberosity (femur)
A: abduct + extend + laterally rotate thigh
N: inferior gluteal nerve (L5, S1-S2)

  • *not used for standing/walking
  • *used for running, jumping, climbing y rising from sitting position
  • 8used when btwn flexed + standing position
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14
Q

gluteus medius and minimus

A

superficial muscle of gluteal region

O: ilium
I: greater trochanter
A: abduct + medially rotate thigh + prevent pelvis from dropping to opposite swing leg when walking
N: superior gluteal nerve (L5, S1)

**beneath gluteus maximus

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15
Q

tensor fasciae latae

A

superficial muscle of gluteal region

O: ASIS, iliac crest
I: IT band
A: abduct + medially rotate thigh + prevent pelvis from dropping to opposite swing leg when walking
N: superior gluteal nerve (L5, S1)

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16
Q

Trendelenburg gait

A

pelvis on contralateral side (side not stepping) descends while walking
- result of weak muscles from injury to superior gluteal nerve, fracture of greater trochanger, or dislocate hip

17
Q

piriformis

A

deep muscle of gluteal region

O: sacrum + sacrotuberous ligament
I: greater trochanter
A: lateral rotation of thigh + abduct thigh
N: S1, S2

18
Q

obturator internus

A

deep muscle of gluteal region

O: obturator membrane
I: greater trochanter
A: lateral rotation of thigh + abduct thigh
N: L5, S1

19
Q

obturator externus

A

deep muscle of gluteal region

O: obturator membrane
I: trochanteric fossa
A: lateral rotation of thigh
N: obturator nerve (L3-L4)

20
Q

superior gemellus

A

deep muscle of gluteal region

O: ischial spine
I: greater trochanter
A: laterally rotate thigh + abduct thigh
N: L5, S1

21
Q

inferior gemellus

A

deep muscle of gluteal region

O: ischial tuberosity
I: greater trochanter
A: laterally rotate thigh + abduct thigh
N: L5, S1

22
Q

quadratus femoris

A

deep muscle of gluteal region

O: ischial tuberosity
I: intertrochanteric crest + quadrate line
A: laterally rotate thigh + abduct thigh
N: L5, S1

23
Q

psoas major + minor

A

hip flexors

O: TP lumbar vertebrae + bodies of T12-L5 + intervertebral discs
I: lesser trochanter
A: flex thigh (walking, elevate for climging); flex trunk @ hip (ipsilateral); posture: maintain normal lumbar curvature during standing
N: L1-L3

24
Q

iliacus

A

hip flexors

O: iliac crest + iliac fossa + sacrum
I: lesser trochanter + tendon of psoas major
A: flex thigh (walking, elevate for climging); flex trunk @ hip (ipsilateral); posture: maintain normal lumbar curvature during standing
N: femoral nerve (L2-L3)

25
Q

iliopsoas

A

psoas major/minor + iliacus

ANP402 (19 decks)

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