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Gross Anatomy 3 > Gluteal Region > Flashcards

Gluteal Region Flashcards

1
Q

What is this muscle and its innervation?

A 
Obturator externus
Obturator nerve (L3, L4)
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2
Q

What are the attachments of quadratus femoris?

A

Ischial tuberosity

Inserts into the quadrate tubercle on the inertrochanteric crest of the femur

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3
Q

What are the attachments of obturator internus?

A

Pelvic surface of the obturator membrane and surrounding bones
Inserts into the medial side of the greater trochanter (trochanteric fossa)

Passes through the lesser sciatic foramen

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4
Q

What are the attachments of gluteus medius?

A

Ilium between the posterior and anterior gluteal lines

Inserts into the greater trochanter of the femur on the lateral surface

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5
Q

What is this muscle and its innervation?

A

Obturator internus

Nerve to obturator internus (L5, S1)

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6
Q

Describe the posterior cutaneous nerve of the thigh

A

Lies on the posterior aspect of the sciatic nerve
Roots are S1,2,3
Gives off inferior clunial nerves which supply the skin of the inferior half of the buttock

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7
Q

What are the actions of the Gemelli muscles?

A

Lateral rotation of the hip

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8
Q

What is this muscle and its innervation?

A

Gluteus Maximus

Inferior Gluteal Nerve (L5, S1, S2)

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9
Q

What movements does the ischiofemoral ligament limit?

A

Extension
Medial rotation
Adduction

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10
Q

What are the attachments of the pubofemoral ligament?

A

Iliopubic eminence into the lower part of the intertrochanteric line

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11
Q

What ligament is shown?

A

The iliofemoral lig.

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12
Q

What are the major vessels supplying the hip joint?

A

Medial circumflex
Lateral circumflex
Acetabular branch (artery to head of femur, round ligament artery)

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13
Q

What is the part of the hip that bears the weight of the body when seated?

A

Ischial tuberosity

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14
Q

What are the functions of the gluteus maximus?

A

Extends the hip

Assists in lateral rotation

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15
Q

What supplies the purple aspect of the posterior thigh?

A

Superior clunial nerve

posterior rami L1, L2, L3

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16
Q

What is this muscle and its innervation?

A

Quadratus Femoris

Nerve to quadratus femoris (L5, S1)

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17
Q

What is the function of quadratus femoris?

A

Laterally rotates the hip

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18
Q

What are the main gluteal nerves and vessels to the region?

A

Superior gluteal nerves and vessels (superficial and deep)
Inferior gluteal nerves and vessels

Relative to piriformis

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19
Q

What are the attachments of the tensor fasciae latae?

A

Anterior iliac creast and ASIS

Inserts into the iliotibial tract

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20
Q

What is this muscle and its innervation?

A

Gluteus Minimis

Superior gluteal nerve (L4, L5, S1)

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21
Q

What is this muscle and its innervation?

A

Piriformis

Anterior rami of S1 and S2

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22
Q

What are the attachments of gluteus maximus?

A

Sacrum, sacrotuberous ligament and the ilium behind the posterior gluteal line

3/4 insert into the iliotibial tract
1/4 inserts into the gluteal tuberosity of the femur

23
Q

What ligament is shown?

A

The sacrospinous ligament

24
Q

What are the lateral rotators of the hip?

A 
Gluteus Maximus (extensor)
Piriformis
Obturator Internus
Gemelli
Quadratus Femoris
25
Q

What are the attachments of the piriformis muscle?

A

Anterior sacrum and sacrotuberous ligament
Inserts into the greater trochanter of the femur on the superior border

Passes through the greater sciatic foramen

26
Q

What area of the lower limb does the obturator nerve supply?

A

Medial compartment of thigh

27
Q

What ligament is shown?

A

Pubofemoral

28
Q

What ligament is shown?

A

The sacrotuberous ligament

29
Q

What is this muscle and its innervation?

A

Inferior gemelli

Nerve to quadratus femoris

30
Q

What are the functions of gluteus medius?

A

Abducts the hip and medially rotates it

31
Q

What are the actions of gluteus medius?

A

Abducts and medially rotates the hip

32
Q

What supplies the pink region of the posterior aspect of the thigh?

A

The posterior clunial nerve of the thigh with the inferior clunial branches
(anterior rami S1, 2, 3)

33
Q

What movements does the pubofemoral ligament limit?

A

Extension
Lateral Rotation
Abduction

34
Q

What supplies the brown region of the posterior region of the thigh?

A

Middle clunial nerve

posterior rami S1,2,3

35
Q

What ligament is shown?

A

The ischiofemoral ligament

36
Q

What are the attachments of the iliofemoral ligament?

A

AIIS into the intertrochanteric line

Split into upper and lower bands

37
Q

What are the attachments of the ischiofemoral ligament?

A

Posterior aspect of acetabulum

Inserts into the greater trochanter

38
Q

What are the attachments of obturator externus?

A

Outer surface of the obturator membrane

Inserts into the trochanteric fossa

39
Q

What is this muscle and its innervation?

A

Gluteus Medius

Superior gluteal nerve (L4, L5, S1)

40
Q

What is this muscle and its innervatiton?

A

Superior gemelli

Nerve to obturator internus

41
Q

What are the actions of the tensor fasciae latae muscle?

A

Tenses the fasciae latae and IT tract

Supports the femur on the tibia during standing

42
Q

What are the attachments of the Gemelli muscles?

A

Superior - origin is ischial spine
Inferior - origin is ischial tuberosity

Blends with the tendon of obturator internus

43
Q

What muscle is highlighted and what is its innervation?

A

Tensor Fasciae Latae

Superior Gluteal Nerve (L4, L5, S1)

44
Q

What are the roots of the sciatic nerve?

A

L4, 5, S1, 2, 3

45
Q

What movements does the iliofemoral ligament limit?

A

Extension
Lateral rotation
Adduction (upper band)
Abduction (lower band)

46
Q

What are the functions of obturator internus?

A

Laterally rotates the hip

47
Q

What 3 bones fuse to make up the innominate (hip) bone?

A

Ilium
Pubic
Ischium

48
Q

What are the attachments of gluteus medius?

A

Ilium between the anterior and inferior gluteal lines

Inserts into the greater trochanter of the femur

49
Q

What are the medial rotators and abductors of the hip?

A

Gluteus Medius

Gluteus Minimus

50
Q

What are the 2 branches that the sciatic nerve divides into and where do they enter into the gluteal region?

A

Tibial - Leaves below piriformis

Common peroneal - can leave below with tibial or above or through the piriformis

51
Q

What is highlighted?

A

The Greater Sciatic Foramen

52
Q

What is the function of the piriformis?

A

Laterally rotates the hip

53
Q

What is the arrow pointing to?

A

Arcuate line

Gross Anatomy 3 (14 decks)

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