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Muscle Tables > Gluteal & Posterior Thigh > Flashcards

Gluteal & Posterior Thigh Flashcards

Learn Gluteal and Posterior thigh muscles, innervations and actions

1
Q

Where does gluteus maximus originate?

A

dorsal ilium, sacrum, coccyx, sacrotuberous ligament and iliac crest

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2
Q

Where does gluteus maximus insert?

A

gluteal tuberosity and iliotibial tract

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3
Q

Where does the gluteus minimus insert?

A

Greater trochanter of femur, anterior aspect

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4
Q

Where does the gluteus medius insert?

A

greater trochanter of femur, lateral aspect

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5
Q

Where does the gluteus medius originate?

A

ilium, between anterior and posterior gluteal lines

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6
Q

Where does the gluteus minimus originate?

A

ilium, between anterior and inferior gluteal lines

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7
Q

What innervates the gluteus medius?

A

superior gluteal N.

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8
Q

What innervates gluteus maximus?

A

Inferior gluteal N.

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9
Q

What innervates gluteus minimus?

A

Superior Gluteal N.

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10
Q

What innervates the Tensor fascia latae muscle?

A

Superior Gluteal N.

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11
Q

Where does the tensor fascia latae insert?

A

Iliotibial Tract

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12
Q

What are the actions of gluteus maximus?

A

hip extension and lateral rotation of thigh

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13
Q

What are the actions of gluteus medius?

A

Stabilization of the pelvis during gait, abduction of thigh, medial rotation of thigh (ant. fibers)

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14
Q

Where does the tensor fascia latae originate?

A

Iliac crest, lateral aspect

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15
Q

What are the actions of gluteus minimus?

A

Stabilization of the pelvis during gait, abduction of thigh, medial rotation of thigh (ant. fibers)

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16
Q

What are the actions of tensor fascia latae

A

Stabilization of the knee in extension, weak hip flexion, abduction of thigh

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17
Q

Where does the piriformis originate?

A

sacrum, pelvic surface

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18
Q

Where does the piriformis insert?

A

greater trochanter of femur, medial apsect

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19
Q

Where does the superior gemellus insert?

A

Greater trochanter, medial apsect via the obturator internus tendon

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20
Q

Where does the superior gemellus originate?

A

ischium

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21
Q

What innervates the piriformis?

A

N. to piriformis

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22
Q

What innervates the superior gemellus?

A

N. to obturator internus

23
Q

What are the actions of the piriformis?

A

lateral rotation of thigh

24
Q

What are the actions of the superior gemellus?

A

lateral rotation of thigh

25
Q

Where does the obturator internus originate?

A

Obturator foramen and obturator membrane, internal aspect

26
Q

Where does the obturator internus insert?

A

greater trochanter of the femur, medial aspect

27
Q

What innervates the obturator internus?

A

N. to obturator internus

28
Q

What are the actions of obturator internus?

A

lateral rotation of thigh

29
Q

Where does the inferior gemellus originate?

A

ischium

30
Q

Where does the inferior gemellus insert?

A

greater trochanter, medial aspect via the obturator internus tendon

31
Q

What innervates the inferior gemellus?

A

N to quadratus femoris

32
Q

What are the actions of inferior gemellus?

A

lateral rotation of thigh

33
Q

Where does the quadratus femoris originate?

A

ischium

34
Q

Where does quadratus femoris insert?

A

quadrate tubercle of the femur

35
Q

What innervates quadratus femoris?

A

N. to quadratus femoris

36
Q

What are the actions of quadratus femoris?

A

lateral rotation

37
Q

What are the two heads of the biceps femoris?

A

long head and short head

38
Q

Where does the long head of the biceps femoris originate?

A

ischial tuberosity

39
Q

Where does the short head of the biceps femoris originate?

A

linea aspera of femur

40
Q

Where does the long head of biceps femoris insert?

A

Head of the fibula, lateral aspect

41
Q

Where does the short head of biceps femoris insert?

A

head of the fibula, lateral aspect

42
Q

What innervates the long head of biceps femoris?

A

Tibial N. (L4-S3)

43
Q

What innervates the short head of biceps femoris?

A

Common Fibular N. (L4-S2)

44
Q

What are the actions of biceps femoris?

A

flexion of knee, weak extension of hip, lateral rotation of tibia

45
Q

Where does the semitendinosus originate?

A

ischial tuberosity

46
Q

Where does the semitendinosus insert?

A

Posterior slip of pes anserinus

47
Q

What innervates the semitendinosus?

A

Tibial N. (L4-S3)

48
Q

What are the actions of semitendinosus?

A

flexion of knee, weak extension of hip, medial rotation of tibia

49
Q

Where does the semimembranosus originate?

A

ischial tuberosity

50
Q

Where does the semimembranosus insert?

A

medial aspect of tibial condyle

51
Q

What innervates the semimembranosus?

A

Tibial N. (L4-S3)

52
Q

What are the actions of the semimembranosus?

A

Flexion of knee, weak extension of hip, medial rotation of tibia

53
Q

What are the nerves that innervate the gluteal region direct branches of?

A

Lumbar (L1-S3) and Sacra (L4-S5) plexuses

54
Q

What are the nerves of the posterior compartment direct branches of?

A

Tibial (L4-S3) and common fibular (L4-S2) nerves which are components of the sciatic nerve

Muscle Tables (12 decks)

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