Gluteal and Posterior Femoral Regions Flashcards Preview

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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

innervation of obturator internus?

nerve to obturator internus