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KSUCPM LE MUSCLES > GLUTEAL MUSCLES > Flashcards

GLUTEAL MUSCLES Flashcards

1
Q

how are the gluteal muscles broken down?

A

deep, intermediate and superficial layers

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2
Q

what are the muscles found in the superficial layer?

A

gluteus maximus m

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3
Q

what are the muscles found in the intermediate layer?

A

gluteus medius m

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4
Q

what are the muscles found in the deep layer?

A 
gluteus minimus m
piriformis m
superior gemellus m
inferior gemellus m
obturator internus m
quadratus femorus m
obturator externus m,
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5
Q

GLUTEUS MAXIMUS M. ORIGIN

A

external iliac ala posterior to posterior gluteal line, the posterior iliac crest, the external surfaces of the sacrum and coccyx, and the sacrotuberous ligament (also gluteal fascia)

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6
Q

GLUTEUS MAXIMUS M. INSERTION

A 
gluteal tuberosity of the
femur and the
posterosuperior iliotibial
tract - passes obliquely
from superomedial to
inferolateral
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7
Q

GLUTEUS MAXIMUS M. ACTION

A

extends and laterally

rotates the thigh

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8
Q

GLUTEUS MAXIMUS M. ARTERIAL SUPPLY

A

superior gluteal artery,
inferior gluteal artery and the perforating branches of the
profunda femoris artery

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9
Q

GLUTEUS MAXIMUS M. INNERVATION

A

inferior gluteal nerve; dorsal divisions of ventral rami L-5,
S-1 & S-2

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10
Q

GLUTEUS MEDIUS M. ORIGIN

A

external iliac ala intermediate to the anterior and

posterior gluteal lines

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11
Q

GLUTEUS MEDIUS M. INSERTION

A

lateral aspect of the
greater trochanter - passes
inferolaterally

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12
Q

GLUTEUS MEDIUS M. ACTION

A

abducts the thigh; aids
with both medial and
lateral rotation of the
thigh

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13
Q

GLUTEUS MEDIUS M. ARTERIAL SUPPLY

A

superior gluteal artery

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14
Q

GLUTEUS MEDIUS M. INNERVATION

A

superior gluteal nerve; dorsal divisions of ventral rami L-4,
L-5 & S-1

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15
Q

GLUTEUS MINIMUS M. ORIGIN

A

iliac ala intermediate to the anterior and inferior
gluteal lines, and the superior edge of the greater
sciatic notch

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16
Q

GLUTEUS MINIMUS M. INSERTION

A

anterior aspects of the
greater trochanter and the
hip joint capsule - passes
inferiorly

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17
Q

GLUTEUS MINIMUS M. ACTION

A 
abduction and medial
rotation of the thigh
(medial rotation because
the insertion of the
muscle is anterior to the
hip joint axis)
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18
Q

GLUTEUS MINIMUS M.ARTERIAL SUPPLY

A

superior gluteal artery

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19
Q

GLUTEUS MINIMUS M. INNERVATION

A

superior gluteal nerve; dorsal
divisions of ventral rami L-4,
L-5 & S-1

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20
Q

PIRIFORMIS M ORIGIN

A

pelvic surface of the sacrum (S-

2, S-3, S-4)

21
Q

PIRIFORMIS M INSERTION

A

superior aspect of the greater
trochanter - passes laterally, exiting
the pelvis via the greater sciatic
foramen

22
Q

PIRIFORMIS M ACTION

A

lateral rotation of the thigh; assists
in abduction and extension of the
thigh

23
Q

PIRIFORMIS MARTERIAL SUPPLY

A

superior and inferior gluteal

arteries, internal pudendal artery

24
Q

PIRIFORMIS M INNERVATION

A

dorsal division of S-2 ventral ramus,

nerve to piriformis muscle

25
Q

INFERIOR GEMELLUS M. ORIGIN

A

inferior margin of lesser sciatic
notch and superior border of
ischial tuberosity

26
Q

INFERIOR GEMELLUS M. INSERTION

A 
anterior fossa (unnamed) at the
medial edge of the greater
trochanter, with the tendons of
superior gemellus and obturator
internus muscles - passes laterally
27
Q

INFERIOR GEMELLUS M. ACTION

A

lateral rotation of the thigh

28
Q

INFERIOR GEMELLUS M. ARTERIAL SUPPLY

A

medial femoral circumflex artery

29
Q

INFERIOR GEMELLUS M. INNERVATION

A

nerve to inferior gemellus muscle and
quadratus femoris muscle, from the from
the sacral plexus; ventral divisions of
ventral rami L-4, L-5 & S-1

30
Q

OBTURATOR INTERNUS M. ORIGIN

A

pelvic surfaces of the obturator foramen and obturator membrane

31
Q

OBTURATOR INTERNUS M. INSERTION

A 
anterior fossa (unnamed) on the
medial edge of the greater
trochanter, with the gemelli
muscles - passes posterolaterally to
exit the pelvis via the lesser sciatic
foramen, then angles anteriorly
around the lesser sciatic notch
32
Q

OBTURATOR INTERNUS M. ACTION

A

external rotation of the thigh; extension and abduction of the
thigh when the hip is flexed

33
Q

OBTURATOR INTERNUS M. ARTERIAL SUPPLY

A

superior gluteal and internal pudendal arteries

34
Q

OBTURATOR INTERNUS M. INNERVATION

A

nerve to obturator internus and superior
gemellus muscles, from the sacral plexus;
ventral divisions of ventral rami L-5, S-1
and S-2

35
Q

QUADRATUS FEMORIS M. ORIGIN

A 
external border (of the
posterior squared part) of the ischial tuberosity
36
Q

QUADRATUS FEMORIS M. INSERTION

A

quadrate tubercle of the femur -passes directly lateral

37
Q

QUADRATUS FEMORIS M. ACTION

A

lateral rotation of the thigh

38
Q

QUADRATUS FEMORIS M. ARTERIAL SUPPLY

A

medial femoral circumflex artery

39
Q

QUADRATUS FEMORIS M. INNERVATION

A

nerve to inferior gemellus muscle and

quadratus femoris muscle, from the sacral plexus; ventral divisions of ventral rami L-4, L-5 and S-1

40
Q

OBTURATOR EXTERNUS M ORIGIN

A

external surfaces of the obturator foramen and the obturator membrane

41
Q

OBTURATOR EXTERNUS M INSERTION

A

trochanteric fossa of the femur
- passes posterolaterally around the inferior surface of the femoral
neck (a spiral course)

42
Q

OBTURATOR EXTERNUS M ACTION

A

lateral rotation of the thigh (due to
insertion posterior to the hip joint
axis); aids in flexion and adduction
of the thigh (due to its course around the femoral neck)

43
Q

OBTURATOR EXTERNUS M ARTERIAL SUPPLY

A

obturator artery

44
Q

OBTURATOR EXTERNUS M INNERVATION

A

obturator nerve; ventral divisions of
ventral rami L-2, L-3 and L-4
- the only gluteal region muscle to receive innervation from the lumbar plexus

45
Q

SUPERIOR GEMELLUS M. ORIGIN

A

ischial spine and superior edge

of lesser sciatic notch

46
Q

SUPERIOR GEMELLUS M. INSERTION

A 
anterior fossa (unnamed) at the
medial aspect of the greater
trochanter, with the tendons of
obturator internus and inferior
gemellus muscles - passes laterally
47
Q

SUPERIOR GEMELLUS M. ACTION

A

lateral rotation of the thigh

48
Q

SUPERIOR GEMELLUS M. ARTERIAL SUPPLY

A

inferior gluteal artery

49
Q

SUPERIOR GEMELLUS M. INNERVATION

A

nerve to obturator internus and superior
gemellus muscles, from the sacral plexus;
ventral divisions of ventral rami L-5, S-1
and S-2

KSUCPM LE MUSCLES (14 decks)

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