Flashcards in Gluteal and Posterior Femoral Regions Deck (68)
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1
piriformis
attached to the sacrum
2
greater and lesser sciatic notches form what?
foramen because there are ligaments
-sacrotubrerous ligament
-becomes greater and lesser sciatic foramina
3
gluteal region?
superficial and deep layers
4
superficial gluteal muscles?
gluteus maximus
gluteus medius
gluteus minimus
tensor fascia latae
5
attachments of gluteus maximus
origin:
between posterior crest of ilium and posterior gluteal line and sacrotuberous ligament
insertion:
gluteal tuberosity of femur and IT tract
**has distal tendon on IT tract
6
action of gluteus maximus
extension, lateral rotation of thigh
action at ITT with tensor fascia latae stabilizes the knee
important in going up stairs or getting up from a sitting position
7
innervation of gluteus maximus
inferior gluteal nerve
8
attachments of gluteus medius
origin:
ilium between posterior and anterior gluteal lines
insertion:
greater trochanter of femur
9
deltoid of the lower limb
gluteal muscles
10
action of gluteus medius?
abduction of thigh
posterior fibers - laterally rotate thigh (w/ gluteus maximus)
anterior fibers - medially rotate thigh (w/ gluteus minimus)
levels sacral base when opposite limb is unsupported
11
innervation of gluteus medius?
superior gluteal nerve
12
attachments of gluteus minimus?
origin:
ilium between anterior and inferior gluteal lines
insertion:
greater trochanter of femur - anterior surface
13
action of gluteus minimus?
abduction and medial rotation of thigh
acts with gluteus medius in leveling sacral base
14
paralyze the L5
sacral base drops
15
attachment of tensor fascia latae?
origin:
anterior outer portion of iliac crest next to ASIS
insertion:
via IT tract to lateral tibial condyle
16
action of tensor fascia latae?
abducts, flexes and medially rotates thigh
by tensing IT tract maintains knee extended
17
innervation of tensor fascia latae?
superior gluteal nerve
18
muscles of deep gluteal region?
piriformis
gemellus superior
obturator internus
gemellus inferior
quadratus femoris
**lateral rotation
19
tensor fascia latae with straight leg?
flex and medially rotate
20
tensor fascia latae
always working with other muscles
21
attachment of piriformis
origin:
anterior surface of sacrum, lateral to anterior sacral foramina
insertion:
greater trochanter of femur
22
action of piriformis
abduction of thigh, lateral rotation
23
innervation to piriformis?
nerve to piriformis
24
attachments of gemellus superior?
origin:
ischial spine
insertion:
tendon of obturator internus (greater trochanter)
25
action of gemellus superior?
lateral rotation of thigh
26
innervation of gemellus superior?
nerve to obturator internus
27
all to greater trochanter?
gemellus superior and inferior
obturator internus
28
attachments of obturator internus
origin:
internal surface of obturator membrane and margins of oburator foramen
insertion:
greater trochanter
29
action of obturator internus?
lateral rotation and some abduction of thigh
30
