LE muscles

Question 1

Pectineus Purposeful Activity

Answer 1

Playing hacky sack, crossing legs

Question 2

Pectineus Muscle Action

Answer 2

Adducts and slightly flexes hip joint;
assists with lateral rotation

Question 3

Pectineus Proximal Attachment

Answer 3

Superior ramus of pubis

Question 4

Pectineus Distal Attachment

Answer 4

Pectineal line of femur, just inferior to lesser trochanter

Question 5

Pectineus Nerve Innervation

Answer 5

Femoral nerve (L2, L3); may receive a branch from
obturator nerve

Question 6

Sartorius Purposeful Activity

Answer 6

Sitting on floor, meditation, yoga

Question 7

Sartorius Muscle Action

Answer 7

Flexes, abducts, and laterally rotates hip joint;
Flexes knee joint (medially rotates leg when knee joint is flexed)

Question 8

Sartorius Proximal Attachment

Answer 8

Anterior superior iliac spine and superior part of notch inferior to it

Question 9

Sartorius Distal Attachment

Answer 9

Superior part of medial surface of tibia (as part of pes anserinus

Question 10

Sartorius Nerve Innervation

Answer 10

Femoral nerve (L2, L3)

Question 11

Superficial Glute Muscles

Answer 11

• Glute Max, Med, Min
• Tensor Fascia Latae

Question 12

Glute Maximus Purposeful Activity

Answer 12

Squatting, sit to stand, bed mobility (bridges)

Question 13

Glute Maximus Muscle Action

Answer 13

Extends hip joint (especially from flexed position) and assists in lateral rotation; fixes hip joint and assists in rising from sitting position

Question 14

Glute Maximus Proximal Attachment

Answer 14

Ilium posterior to posterior gluteal line; dorsal surface of sacrum and coccyx; sacrotuberous ligament

Question 15

Glute Maximus Distal Attachmnet

Answer 15

Most fibers end in iliotibial tract, which inserts into lateral condyle of tibia; some fibers insert on gluteal tuberosity.

Question 16

Glute Maximus Nerve Innervation

Answer 16

Inferior gluteal nerve (L5, S1, S2)

Question 17

Glute Medius Purposeful Activity

Answer 17

Smooth walking, standing on one leg to
dress/shower

Question 18

Glute Medius Muscle Action

Answer 18

Abduct and medially rotate hip joint
Posterior fibers externally rotate (clam)
Keeps pelvis level when ipsilateral limb is weight bearing and advance opposite (unsupported) side during its swing phase

Question 19

Glute Medius Proximal Attachment

Answer 19

External surface of ilium between anterior and posterior
gluteal lines

Question 20

Glute Medius Distal Attachment

Answer 20

Lateral surface of greater trochanter of femur

Question 21

Glute Minimus Purposeful Activity

Answer 21

Walk, standing on one leg to dress/shower

Question 22

Glute Medius Nerve Innervation

Answer 22

Superior Gluteal nerve (L5, S1)

Question 23

Glute Minimus Muscle Action

Answer 23

Abduct and medially rotate hip joint; keep pelvis level when ipsilateral limb is weight bearing and advance opposite (unsupported) side during its swing phase

Question 24

Glute Minimus Proximal Attachment

Answer 24

External surface of ilium between anterior and inferior gluteal lines

Question 25

Glute Minimus Distal Attachment

Answer 25

Anterior surface of greater trochanter of femur

Question 26

Glute Minimus Nerve innervation

Answer 26

Superior Gluteal nerve (L5, S1)

Question 27

Tensor Fascia Latae Purposeful Activity

Answer 27

Running, single leg squatting

Question 28

Tensor Fascia Latae Muscle Action

Answer 28

Medially rotate hip joint! Abduct hip joint Keep pelvis level when ipsilateral limb is weight bearing and advance opposite (unsupported) side during its swing phase

Question 29

Tensor Fascia Latae Proximal Attachment

Answer 29

Anterior superior iliac spine; anterior part of iliac crest

Question 30

Tensor Fascia Latae Distal Attachment

Answer 30

Iliotibial tract, which attaches to anterolateral tibial tubercle

Question 31

Tensor Fascia Latae Nerve Innervation

Answer 31

Superior Gluteal Nerve (L5, S1)

Question 32

Piriformis Purposeful Activity

Answer 32

Yoga, standing on one leg, making sciatic nerve mad

Question 33

Piriformis Muscle Action

Answer 33

Laterally rotate extended hip joint and abduct hip joint when flexed; stabilize hip joint

Question 34

Piriformis Proximal Attachment

Answer 34

Anterior surface of sacrum; ST Ligament

Question 35

Piriformis Distal Attachment

Answer 35

Superior border of greater trochanter of femur

Question 36

Piriformis Nerve innervation

Answer 36

Branches of anterior rami of S1 and S2