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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
Origin of superior and inferior gemelli
Superior ischial spine Inferior ischial tuberosity
26
Insertion
Medial surface of greater trochanter of femur
27
Nerves of superior and inferior gemelli
Superior. Nerve to obturator internus Inferior gemelli: nerve to quadratus femoris
28
Origin of quadratus femoris
Lateral border of ischial tuberosity
29
Insertion of quadratus femoris
Quadrate tubercle on intertrochanteric crest of femur and area inferior to it
30
Innervation of quadratus femoris
Nerve to quadratus femoris
31
The gluteal Maximus is supplied by what
The superior and inferior gluteal arteries
32
What muscle is the strongest hip extensor
The gluteus Maximus
33
Actions of gluteus Maximus
Extension and lateral rotation of the hip
34
What are bursas
They are membranous sacs lined by a Synnovial membrane. Containing a capillary layer of slippery fluid
35
Gluteal bursae
It seperates the gluteus Maximus from adjacent structures
36
Bursae associated with the gluteus Maximus
Trochanteric bursa Ischial bursa Gluteofemoral bursa
37
Functions of the trochanteric bursa
It separates superior fibers of the gluteus maximus from the greater trochanter
38
Ischial bursa
Separates the inferior border of the glute Maximus from the ischial tuberosity
39
Functions of gluteofemoral bursa
Separates the illiotibial tract from the superior part of proximal attachment of the vastus lateralis
40
Ischial tuberosity
Can be felt on deep palpating through the inferior part of the muscle Just superior to the medial part of the gluteal fold
41
Ischial tuberosity
Can be felt on deep palpating through the inferior part of the muscle Just superior to the medial part of the gluteal fold
42
Do you sit on your gluteus Maximus
No
43
Where do you sit
You sit on the fatty fibrous tissue, and ischial bursa that lies between the ischial tuberosity and skin
44
At what angle does the gluteus Maximus slope
It slopes at 45 degrees from the pelvis to the buttocks
45
How does the inferior gluteal nerve and vessel enter the gluteus Maximus
They enter the deep surface of the muscle through the center
46
Blood supply of the gluteus Maximus
Superior and inferior gluteal artery
47
Where does the sciatic nerve pass
It passes deep to the gluteus Maximus
48
Actions of gluteus Maximus
Lateral rotation Extension of the thigh
49
Attachment of the illiotibial tract to the femur
It attaches via inter muscular septum
50
Shape of the gluteus Maximus and medius
Fan shaped
51
Arterial supply of gluteus minimus and medius
Superior gluteal nerve
52
Functions of gluteus Medius and minimus
Abduction Medial rotation
53
Shape of the tensor fascia latae
It is a fusiform muscle
54
Location of the tensor fascia latae
It is about 15cm long It is enclosed between 2 layers of fascia latae
55
To produce flexion, the tensor fascia latae acts with what other muscles
Illiopsoas Rectus femoris
56
Piriformis shape
It is pear shaped
57
How does the piriformis leave the pelvis
It leaves through the greater sciatic foremen
58
Landmark of the gluteal region
Piriformis
59
Which muscles form the triceps coaxe or tricipital
The obturator internus Superior and inferior gemelli
60
Where does the common tendon of the triceps coxae lie
It lies horizontally in the buttocks as it passes through the greater trochanter of the femur
61
How does the obturator internus leave the femur
It leaves the femur through the lesser sciatic foramen
62
Quadratus femoris
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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