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Lower Limbs > Muscles Of Gluteal Region > Flashcards

Muscles Of Gluteal Region Flashcards

1
Q

Innervation of gluteal Maximus

A

Inferior gluteal nerve
A branch of the sacral plexus

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2
Q

Origin of the gluteus Maximus

A

Dorsal surface of sacrum and coccyx
Sacrotuberous ligament
Ilium , posterior to posterior gluteal line

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3
Q

Distal attachment of gluteus Maximus

A

Most fibers end in the illiotibial tract
Some fibers insert on the gluteal tuberosity.

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4
Q

Actions of gluteus Maximus

A

Extends thighs
Laterally rotates thigh
Assists in rising from sitting position

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5
Q

Origin of gluteal medius

A

External surface of ilium
Between the anterior and posterior gluteal lines

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6
Q

Insertion of gluteus medius

A

Lateral surface of greater trochanter of femur

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7
Q

Innervation

A

Superior gluteal nerves
(L5,S1)

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8
Q

Action of gluteus medius

A

Abducts and medially rotates tigh

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9
Q

Origin of gluteus minimus

A

External surface of ilium
Between the anterior and inferior gluteal lines

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10
Q

Insertion of gluteus minimus

A

Anterior surface of greater trochanter

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11
Q

Innervation

A

Superior gluteal nerve (S5,l1

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12
Q

Functions of gluteus minimus

A

Abducts and medially rotates thigh

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13
Q

Origin of tensor fascia latae

A

Anterior superior iliac spine
Anterior part of iliac crest

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14
Q

Distal attachment of tensor fascia latae

A

Iliotibial tract, which attaches to lateral condyle of tibia

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15
Q

Innervation of tensor fascia latae

A

Superior gluteal nerve

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16
Q

Functions of tensor fascia latae

A

Medial rotation of the thigh
Ebducts thigh

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17
Q

What are the superficial muscles of the gluteal region

A

Gluteus Maximus
Gluteus medius
Gluteus minimus
Tensor fascia latae

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18
Q

Deep muscles of the gluteal region

A

Piriformis
Obturator internus
Superior and inferior gemelli
Quadratus femoris

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19
Q

Proximal attachment of piriformis

A

Anterior surface of sacrum
Sacrotuberous ligament

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20
Q

Insertion of piriformis

A

Superior border of greater trochanter of femur

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21
Q

Innervation of piriformis

A

Branches of interior rami of S1 , S2

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22
Q

Proximal attachment of obturator internus

A

Pelvic surface of obturator membrane and surrounding bones

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23
Q

Distal attachment of obturator internus

A

Medial surface of greater trochanter of femur

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24
Q

Innervation of obturator internus

A

Nerve to obturator internus (L5,S1)

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25
Q

Origin of superior and inferior gemelli

A

Superior ischial spine
Inferior ischial tuberosity

26
Q

Insertion

A

Medial surface of greater trochanter of femur

27
Q

Nerves of superior and inferior gemelli

A

Superior. Nerve to obturator internus
Inferior gemelli: nerve to quadratus femoris

28
Q

Origin of quadratus femoris

A

Lateral border of ischial tuberosity

29
Q

Insertion of quadratus femoris

A

Quadrate tubercle on intertrochanteric crest of femur and area inferior to it

30
Q

Innervation of quadratus femoris

A

Nerve to quadratus femoris

31
Q

The gluteal Maximus is supplied by what

A

The superior and inferior gluteal arteries

32
Q

What muscle is the strongest hip extensor

A

The gluteus Maximus

33
Q

Actions of gluteus Maximus

A

Extension and lateral rotation of the hip

34
Q

What are bursas

A

They are membranous sacs lined by a Synnovial membrane. Containing a capillary layer of slippery fluid

35
Q

Gluteal bursae

A

It seperates the gluteus Maximus from adjacent structures

36
Q

Bursae associated with the gluteus Maximus

A

Trochanteric bursa
Ischial bursa
Gluteofemoral bursa

37
Q

Functions of the trochanteric bursa

A

It separates superior fibers of the gluteus maximus from the greater trochanter

38
Q

Ischial bursa

A

Separates the inferior border of the glute Maximus from the ischial tuberosity

39
Q

Functions of gluteofemoral bursa

A

Separates the illiotibial tract from the superior part of proximal attachment of the vastus lateralis

40
Q

Ischial tuberosity

A

Can be felt on deep palpating through the inferior part of the muscle
Just superior to the medial part of the gluteal fold

41
Q

Ischial tuberosity

A

Can be felt on deep palpating through the inferior part of the muscle
Just superior to the medial part of the gluteal fold

42
Q

Do you sit on your gluteus Maximus

A

No

43
Q

Where do you sit

A

You sit on the fatty fibrous tissue, and ischial bursa that lies between the ischial tuberosity and skin

44
Q

At what angle does the gluteus Maximus slope

A

It slopes at 45 degrees from the pelvis to the buttocks

45
Q

How does the inferior gluteal nerve and vessel enter the gluteus Maximus

A

They enter the deep surface of the muscle through the center

46
Q

Blood supply of the gluteus Maximus

A

Superior and inferior gluteal artery

47
Q

Where does the sciatic nerve pass

A

It passes deep to the gluteus Maximus

48
Q

Actions of gluteus Maximus

A

Lateral rotation
Extension of the thigh

49
Q

Attachment of the illiotibial tract to the femur

A

It attaches via inter muscular septum

50
Q

Shape of the gluteus Maximus and medius

A

Fan shaped

51
Q

Arterial supply of gluteus minimus and medius

A

Superior gluteal nerve

52
Q

Functions of gluteus Medius and minimus

A

Abduction
Medial rotation

53
Q

Shape of the tensor fascia latae

A

It is a fusiform muscle

54
Q

Location of the tensor fascia latae

A

It is about 15cm long
It is enclosed between 2 layers of fascia latae

55
Q

To produce flexion, the tensor fascia latae acts with what other muscles

A

Illiopsoas
Rectus femoris

56
Q

Piriformis shape

A

It is pear shaped

57
Q

How does the piriformis leave the pelvis

A

It leaves through the greater sciatic foremen

58
Q

Landmark of the gluteal region

A

Piriformis

59
Q

Which muscles form the triceps coaxe or tricipital

A

The obturator internus
Superior and inferior gemelli

60
Q

Where does the common tendon of the triceps coxae lie

A

It lies horizontally in the buttocks as it passes through the greater trochanter of the femur

61
Q

How does the obturator internus leave the femur

A

It leaves the femur through the lesser sciatic foramen

62
Q

Quadratus femoris

A

It is a short flat quadrangular muscle
Located inferior to the obturator internus and gemelli
It is a strong lateral rotator of the thigh

Lower Limbs (6 decks)

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