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Lower limbs > Gluteal region > Flashcards

Gluteal region Flashcards

1
Q

Origin of gluteus maximus?

A

Gluteal surface of ilium, thoracolumbar fascia, dorsal surface of sacrum, lateral margin of coccyx, sacrotuberous ligament

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2
Q

Insertion of gluteus maximus?

A

Upper fibers: posterior part of iliotibial tract
Lower fibers: gluteal tuberosity of femur

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3
Q

Action of gluteus maximus?

A

Upper fibers: extension, external rotation, abduction of the hip joint
Lower fibers: adduction of the hip joint

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4
Q

Innervation of gluteus maximus?

A

Inferior gluteal nerve (L5-S2)

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5
Q

Origin of gluteus medius?

A

Gluteal surface of ilium (between the anterior and posterior gluteal lines)

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6
Q

Insertion of gluteus medius?

A

Lateral surface of the greater trochanter

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7
Q

Action of gluteus medius?

A

Abduction + internal rotation of hip joint, pelvic stabilisation

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8
Q

Innervation of gluteus medius?

A

Superior gluteal nerve (L4-S1)

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9
Q

Origin of gluteus minimus?

A

Gluteal surface of ilium (between inferior and anterior gluteal line)

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10
Q

Insertion of gluteus minimus?

A

Anterolateral aspect of the greater trochanter

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11
Q

Action of gluteus minimus?

A

Abduction + internal rotation of the hip joint, pelvic stabilisation

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12
Q

Innervation of gluteus minimus?

A

Superior gluteal nerve (L4-S1)

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13
Q

Origin of tensor fasciae latae?

A

Anterior superior iliac spine (ASIS) and outer lip of the iliac crest

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14
Q

Insertion of tensor fasciae latae?

A

Lateral condyle of tibia (via iliotibial tract)

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15
Q

Action of tensor fasciae latae?

A

Internal rotation (weak abduction) at hip joint, external rotation (weak flexion + extension) at knee joint, stabilises hip and knee joint

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16
Q

Innervation of tensor fasciae latae?

A

Superior gluteal nerve (L4-S1)

17
Q

Origin of piriformis?

A

Anterior surface of the sacrum, gluteal surface of ilium (near posterior inferior iliac spine), sacrotuberous ligament

18
Q

Insertion of piriformis?

A

Apex of the greater trochanter of the femur

19
Q

Action of piriformis?

A

External rotation + abduction of hip joint, stabilises head of femur in acetabulum

20
Q

Innervation of piriformis?

A

Direct branches from the sacral plexus (L5-S1) and the ventral rami of S1-S2

21
Q

Origin of obturator internus?

A

Posterior surface of the obturator membrane, bony boundaries of the obturator foramen

22
Q

Insertion of obturator internus?

A

Medial surface of the greater trochanter above the trochanteric fossa

23
Q

Action of obturator internus?

A

External rotation of extended thigh, abduction of flexed thigh, stabilisation of hip joint

24
Q

Innervation of obturator internus?

A

Obturator internus nerve (L5-S2)

25
Q

Origin of gemellus superior?

A

Ischial spine

26
Q

Insertion of gemellus superior?

A

Medial surface of the greater trochanter (via the tendon of obturator internus)

27
Q

Action of gemellus superior?

A

Thigh external rotation, abduction of thigh from flexed hip, stabilises head of femur in acetabulum

28
Q

Innervation of gemellus superior?

A

Obturator internus nerve (L5-S2)

29
Q

Origin of gemellus inferior?

A

Ischial tuberosity

30
Q

Insertion of gemellus inferior?

A

Medial surface of the greater trochanter of femur (via the obturator internus tendon)

31
Q

Action of gemellus inferior?

A

External rotation + abduction (from flexed hip) at hip joint, stabilises head of femur in acetabulum

32
Q

Innervation of gemellus inferior?

A

Quadratus femoris nerve (L4-S1)

33
Q

Origin of quadriceps femoris?

A

Ischial tuberosity

34
Q

Insertion of quadriceps femoris?

A

Intertrochanteric crest of femur

35
Q

Action of quadriceps femoris?

A

External rotation + assisting abduction in hip joint, stabilises head of femur in acetabulum

36
Q

Innervation of quadriceps femoris?

A

Quadratus femoris nerve (L4-S1)

Lower limbs (7 decks)

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