Topic 12 - Dorsal muscles of the buttock Flashcards

1
Q

The muscles

A
M.gluteus medius
M.gluteus superficialis
M.gluteus profundus
M.piriformis
All of them extends the hip - the gluteus medius is the strongest. All inserts on trochanter major - except gluteus spf. which inserts on tub.glutea (below trochanter major). Originate from pelvis and vertebral column.
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2
Q

M.gluetus superficialis

A

O: Sacrum and first caudal vertebrae. Partly from the sacrotuberous lig. and by means of the spina iliaci dors. cran. and the deep gluteal fascia.
I: Tub.glutea (below trochanter major)
A: Extend the hip

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3
Q

M.gluteus medius

A

O: Crista iliaca and the gluteal surface of iliac bone.
I: Trochanter major
A: Strongest extensor of hip joint

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4
Q

M.gluteus profundus

A

O: Gluteal surface and body of ilium
I: Trochanter major
A: Extension of the hip

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5
Q

M.piriformis

A

O: Last sacral and first caudal vertebrae
I: Trochanter major
A: Extend the hip joint

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