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Lower Limb Anatomy + Intrinsic Back Muscles > Gluteal Muscles > Flashcards

Gluteal Muscles Flashcards

1
Q

Origin of Gluteus Maximus

A

Gluteal (Posterior Surface) of the Ilium, Sacrum and Coccyx

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2
Q

Attachment of Gluteus Maximus

A

Lateral side of the Greater Trochanter ( The Gluteal Tuberosity)
Iliotibial Tract

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3
Q

Action of Gluteus Maximus

A

Main Extensor of the thigh
Lateral Rotation of the Hip Joint
(only used when force is required e.g. running/climbing)

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4
Q

Innervation of Gluteus Maximus

A

Inferior Gluteal Nerve (L5/S1/S2)

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5
Q

Origin of Gluteus Medius

A

Gluteal surface of the Ilium

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6
Q

Attachment of Gluteus Medius

A

Lateral side of the Greater Trochanter of the Femur

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7
Q

Action of Gluteus Medius

A

Abduction and Medial Rotation of the Hip joint

Prevents contralateral hip drop during locomotion

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8
Q

Innervation of Gluteus Medius

A

Superior Gluteal nerve (L4/L5/S1)

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9
Q

Origin of Gluteus Minimus

A

Gluteal surface of the Ilium

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10
Q

Attachment of Gluteus Minimus

A

Anterior surface of the Greater Trochanter of the Femur

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11
Q

Action of Gluteus Minimus

A

Abduction and Medial Rotation of the Hip joint

Prevents contralateral hip drop during locomotion

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12
Q

Innervation of Gluteus Minimus

A

Superior Gluteal nerve (L4/L5/S1)

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13
Q

Tensor Fascia Lata Origin

A

Anterior Iliac Crest

Anterior Superior Iliac Spine

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14
Q

Tensor Fascia Lata Attachement

A

Iliotibial Tract

which goes on to attach to the Lateral Condyle of the Tibia

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15
Q

Tensor Fascia Lata Action

A

Abduction and Medial Rotation of the Hip Joint.

Supportive Role in the Gait cycle.

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16
Q

Tensor Fascia Lata Innervation

A

Superior Gluteal nerve (L4/L5/S1)

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17
Q

How many muscles are there in the Superficial Gluteal Region

A

4 - Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Tensor Fascia Lata

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18
Q

How many muscles are there in the Deep Gluteal Region

A 
4/5 - Piriformis
Gemelli Superior
Obturator Internus
Gemelli Inferior
Quadratus Femoris
19
Q

Origin of Piriformis

A

Anterior Surface of the Sacrum

20
Q

Attachment of Piriformis

A

Greater Trochanter of the Femur

21
Q

Action of Piriformis

A

Lateral Rotation and Abduction of the hip joint

22
Q

Innervation of Piriformis

A

Nerve to Piriformis (S1/S2)

23
Q

Clinical Significance of Piriformis

A

Splits the Greater Sciatic Foramen into 2 sections. Enables identification of Superior and Inferior Gluteal nerves as well the Sciatic nerve.

24
Q

Obturator Internus Origin

A

Pubis and Ischium at the Obturator Foramen

25
Q

Obturator Internus Attachment

A

Greater Trochanter of the Femur

26
Q

Obturator Internus Action

A

Lateral Rotation and Abduction of the hip joint

27
Q

Obturator Internus Innervation

A

Nerve to Obturator Internus (L5/S1/S2)

28
Q

Superior Gemelli Origin

A

Ischial Spine

tip think Superior - Spine

29
Q

Superior Gemelli Attachment

A

Greater Trochanter of the Femur

30
Q

Superior Gemelli Action

A

Lateral Rotation and Abduction of the hip joint

31
Q

Superior Gemelli Innervation

A

Nerve to Obturator Internus (L5/S1/S2)

32
Q

Inferior Gemelli Origin

A

Ischial Tuberosity

33
Q

Inferior Gemelli Attachment

A

Greater Trochanter of the Femur

34
Q

Inferior Gemelli Action

A

Lateral Rotation and Abduction of the hip joint

35
Q

Inferior Gemelli Innveration

A

Nerve to Quadratus Femoris (L4/L5/S1)

36
Q

Quadratus Femoris Origin

A

Lateral side of the Ischial Tuberosity

37
Q

Quadratus Femoris Attachment

A

Quadrate Tuberosity on the Intertrochanteric Crest (Posterior Surface of the Femur)

38
Q

Quadratus Femoris Action

A

Lateral Rotation (only) of the hip joint

39
Q

Quadratus Femoris Innveration

A

Nerve to Quadratus Femoris (L4/L5/S1)

40
Q

Hip drop is caused by damage to which nerve?

A

Damage to the Superior Gluteal Nerve

41
Q

What is a positive Trendelenberg Sign?

A

Patient standing on one leg will have an apparent drop of their Iliac crest in their contrateral hip

42
Q

Main action(s) of the Superficial Muscles

A

Abduction and Medial Rotation

(Gluteus Maximus is the exception as it is responsible for Extension and Lateral Rotation

43
Q

Main action(s) of the Deep Muscles

A

Lateral Rotation

Lower Limb Anatomy + Intrinsic Back Muscles (13 decks)

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