Posterior muscle O.I.A.N Flashcards by Joe Cavazos

Q

Gluteus Maximus origin

A

Posterior GLUTEAL line/ilium

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Q

Gluteus Maximus Insertion

A

GLUTEAL tuberosity/femur

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Q

Gluteus Maximus action

A

extends and laterally rotates the femur

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Q

Gluteus Maximus nerve supply

A

inferior gluteal (L5, S1, S2)

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Q

Gluteus Medius origin

A

External surface/ ilium

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Q

Gluteus Medius insertion

A

Greater trochanter/femur

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Q

Gluteus Medius action

A

abducts the femur

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Q

Gluteus Medius nerve supply

A

superior gluteal (L4,L5,S1)

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Q

Gluteus Minimus origin

A

external surface/ ilium

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Q

Gluteus Minimus insertion

A

greater trochanter/ femur

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Q

Gluteus Minimus action

A

abducts the femur

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Q

Gluteus Minimus N.

A

superior gluteal (L4,L5,S1)

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Q

Piriformis orgin

A

anterior surface/ sacrum

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Q

Piriformis insertion

A

greater trochanter/ femur

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Q

Piriformis action

A

laterally rotates the femur

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Q

Piriformis nerve supply

A

S1,S2

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Q

Superior Gemellus origin

A

spine/ischium

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Q

Superior Gemellus insertion

A

greater trochanter/ femur

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Q

Superior Gemellus action

A

laterally rotates the femur

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Q

Superior Gemellus innervation

A

L4,L5,S1,S2

Q

Obturator Internus origin

A

INTERNAL surface/ OBTURATOR membrane

Q

Obturator Internus insertion

A

greater trochanter/femur

Q

Obturator Internus action

A

laterally rotates the femur

Q

Obturator Internus innervation

A

L4,L5,S1,S2

Q

Inferior Gemellus origin

A

ischial tuberosity

Q

Inferior Gemellus insertion

A

greater trochanter/ femur

Q

Inferior Gemellus action

A

laterally rotates the femur

Q

Inferior Gemellus innervation

A

L4,L5,S1,S2

Q

Obturator Externus origin

A

EXTERNAL surface/ OBTURATOR membrane

Q

Obturator Externus insertion

A

trochanteric fossa/ femur

Q

Obturator Externus action

A

laterally rotates the femur

Q

Obturator Externus innervaion

A

obturator (L2,L3,L4)

Q

Quadratus Femoris origin

A

ischial tuberosity

Q

Quadratus Femoris insertion

A

QUADRATE tubercule/ femur

Q

Quadratus Femoris action

A

laterally rotates the femur

Q

Quadratus Femoris innervation

A

L4,L5,S1,S2

Q

semitendinosous origin

A

ischial tuberosity

Q

semitendinosous insertion

A

medial condyle and proximal posterior shaft/tibia

Q

semitendinosous action

A

Flexion of leg at knee joint

Q

semitendinosous innervation

A

sciatic nerve (L4-S3)

Q

semimembranosus origin

A

ischial tuberosity

Q

semimembranosus insertion

A

medial condyle/ tibia

Q

semimembranosus action

A

Flexion of leg at knee joint

Q

semimembranosus innervation

A

sciatic nerve (L4-S3)

Q

Biceps femoris (long and short head) origin

A

Ischial tuberosity (L.H.)

(S.H.)=linea aspera of the femur

Q

Biceps femoris (long and short head) insertion

A

Head/fibula

Q

Biceps femoris (long and short head) action

A

Flexion of leg at knee joint

Q

Biceps femoris (long and short head) innervation

A

sciatic nerve (L4-S3)