LOWER LIMB: Pelvic Girdle and Gluteal Region

Question 1

Difference between the Greater and Lesser Sciatic Foramina

Answer 1

GREATER SCIATIC FORAMEN = structures passing from pelvis into the gluteal region

whereas LESSER SCIATIC FORAMEN = communication between perineum of pelvis + gluteal region

Question 2

Ligaments associated with the greater sciatic foramen

Answer 2

• posterior sacroiliac ligament
• sacrospinous (separates the two sciatic foramina)
• sacrotuberous ligament

Question 3

Ligaments associated with the lesser sciatic foramen

Answer 3

• sacrotuberous ligament

Question 4

Innervation of the superficial gluteus region

Answer 4

G. max = inferior gluteal nerve - ventral rami (L5, S1, S2)

G. medius = Sup Glut. N branch (L4, L5, S1)

G. Minimus = Sup Glut. N branch (L4, L5, S1)

+ Tensor Fascia Lata = Branch of Superior Gluteal N (L4, L5)

Question 5

Actions of the Glut. Maximus

Answer 5

Extension of hip and Lateral Rotatiion

Question 6

Actions of the tensor fasciae latate, G. medius, and G. maximus

Answer 6

Medial Rotation of the hip joint
flexion, abduction

+knee extension

Question 7

What muscles attach to the iliotibial tract and function of said tract

Answer 7

The iliotibial tract is found laterally on the leg, from the iliac crest and inserts at the knee

Is is comprised by attachments from the tensor fascia lata. and G. maximus

*it provids stab. to the lateral aspect of the knee joint

Question 8

What is the function of the pubofemoral ligament on the hip joint?

Answer 8

Prevents over-abduction of the hip