Gluteal region and Posterior Thigh (Lect) Flashcards Preview

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Flashcards in Gluteal region and Posterior Thigh (Lect) Deck (51)
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1

What muscles act to stabilize the head of the femur in the acetabulum?

Superior and inferior gemellus, quadratus femoris, obturator internis

2

Where is the weak area for anterior dislocation?

between iliofemoral and pubofemoral ligaments

3

Where is the weak spot for posterior dislocation?

between iliofemoral and ischiofemoral ligaments

4

What is the position of the leg if it has been posteriorly dislocated?

medially rotated

5

What is the orientation of the leg if it has undergone anterior dislocation?

laterally rotated

6

What is the primary opposing muscle to illiopsoas?

Gluteus maximus

7

T or F: the gluteus maximus helps keep tension in the iliotibial tract?

False, this is a major job of tensor fascia lata

8

What is illiotibial band syndrome?

Occurs when IT band is inflamed
Causes pain in lateral knee and hip
common in long-distance runners, bicyclists, and other athletes

9

Whose fibers can be seen deep to the gluteal aponeurosis?

gluteus medius

10

What is the job of the anterior fibers of gluteaus medius and minimus?

Medial rotation of femur

11

What is the name of the gait that accompanies the tendelenburg sign?

Duchenne Limp

12

Where do most of the lateral rotators insert?

on the medial aspect of the greater trochanter
(except for quadratus femoris = quadrate tubercle)

13

What muscle passes through the greater sciatic foramen?

Piriformis

14

What muscles passes through the lesser sciatic foramen?

Obturator internus

15

What passes through the greater sciatic notch?

Superior Gluteal n. a. v.
Pudendal n. and Internal pudendal a. v.
Inferior gluteal n. a. v.
Nerve to obturator internus, quatratus femoris, piriformis
Sciatic nerve

and Posterior Femoral Cutaneous N.

16

What goes through the lesser sciatic foramen?

Pudendal Nerve (medial)
Internal Pudendal Vessels
Nerve to Obturator Internus (lateral)

17

What is the job of the structures that emerge superiorly from piriformis?

gluteus minimus and medius
Abduct
Weak Ext
Stabilization of Hip

Tensor fascia Lata
Abduct
Knee stabilization in ext.

18

Where do all the nerves in the gluteal region originate?

The sacral plexus and lumbosacral trunk

19

What cutaneous nerve emerges medially to the sciatic?

posterior femoral cutaneous n.

20

What nerve is directly deep to the sciatic?

N. to quadratus femoris

21

What nerves are at risk in gluteal injections?

sciatic nerve, inferior gluteal, inferior gluteal

22

What deficits would result from damage to the sciatic N in a gluteal injection?

deficits in hip extension, leg flexion, and movements of the ankle and toes

23

What deficits might result from damage to the inferior gluteal N?

deficits in hip extension, lateral rotation, loss of tension in iliotibial tract (reducing knee stability)

24

What deficits might result from damage to the superior gluteal n.?

deficits in abduction, medial rotation of the hip, loss of stability of the pelvis when walking

25

Where is the safe zone for gluteal injections?

upper lateral quadrant

26

What is piriformis syndrome?

Presses the sciatic n. when it becomes inflammed as a result of a fall or be overworked through activity

27

Where would pain be felt in piriformis syndrome?

in the butt at piriformis, and around the sciatic N.

28

What is isthmic spondylolisthesis?

lamina (usually of L5) breaks and the vertebra slides forward pinching the L5 nerve

29

What is a symptom of compression of the cauda equina via a ruptured disk?

pain emanating from parts of the bottock, thigh, leg, and foot served by the individual nerves involved

30

What are the primary and secondary actions of the muscles in the posterior compartment of the leg?

1. Knee Flexion
2. Hip Extension and rotation at the knee joint