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Human Locomotor Systems > Gluteal muscles > Flashcards

Gluteal muscles Flashcards

1
Q

What are the muscles of the gluteal region?

A

Gluteus max/min/med

Piriformis, gemellus superior/inferior, obturator internus, quadratus femoris

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2
Q

What are the origin and insertion of Gluteus Maximus?

A
  • Origin: Posterior gluteal line of ilium, dorsal sacrum, sacrotuberous ligament
  • Insertion: Iliotibial tract of fascia lata, gluteal tuberosity of femur
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3
Q

What is the action of Gluteus Maximus?

A

Extends thigh, assists in adduction and lateral rotation

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4
Q

What are the origin and insertion of gluteus medius?

A
  • Origin: Lateral surface of ilium between anterior and posterior gluteal lines
  • Insertion: Lateral surface of greater trochanter of femur
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5
Q

What are the actions of gluteus medius?

A

Abducts thigh, rotates thigh medially

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6
Q

What are the origin and insertion of gluteus minimus?

A
  • Origin: Lateral surface of ilium between anterior and inferior gluteal lines
  • Insertion: Anterior border of greater trochanter of femur
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7
Q

What are the actions of the gluteus minimus?

A

Abducts thigh, rotates thigh medially

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8
Q

What are the origin and insertion of the piriformis?

A
  • Origin: Anterior surface of sacrum and sacrotuberous ligament
  • Insertion: Superior border of greater trochanter of femur
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9
Q

What are the actions of the piriformis?

A

Laterally rotates thigh, abducts thigh when limb is flexed

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10
Q

What are the origin and insertion of the obturator internus?

A
  • Origin: Pelvic surface of obturator membrane and margins of obturator foramen
  • Insertion: Medial surface of greater trochanter of femur
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11
Q

What are the actions of the OI?

A

Laterally rotates thigh, abducts thigh when limb is flexed

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12
Q

What are the origin and insertion of the Gemellus superior?

A
  • Origin: Outer surface of ischial spine

- Insertion: Medial surface of greater trochanter of femur

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13
Q

What are the actions of GS?

A

Laterally rotates thigh

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14
Q

What are the origin and insertion of Gemellus inferior?

A
  • Origin: Upper margin of ischial tuberosity

- Insertion: Medial surface of greater trochanter of femur

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15
Q

What are the actions of Gemellus inferior?

A

Laterally rotates thigh

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16
Q

What are the origin and insertion of Quadratus femoris?

A
  • Origin: Lateral margin of ischial tuberosity

- Insertion: Quadrate tubercle on intertrochanteric crest of femur

17
Q

What are the actions of QF?

A

Laterally rotates and adducts thigh

Human Locomotor Systems (13 decks)

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