Gluteal Region

Question 1

Discuss Gluteus Maximus stating the attachments, innervation and action

Answer 1

O- gluteal surface; behind the posterior gluteal line
- back of sacrum
- back of sacrotuberous ligament
I- superficial 3/4 in iliotibial band and deep 1/4 in gluteal tuberosity of femur
N- inferior gluteal nerve
A- main extensor of hip joint

Question 2

Hyper extension of hip joint is prevented by?

Answer 2

Iliofemoral ligament

Question 3

What prevents hyper abduction of hip joint?

Answer 3

Pubofemoral ligament

Question 4

Structures that pass above piriformis

Answer 4

Superior gluteal nerve(L5,S1)
Superior gluteal vessels

Question 5

Structures that pass below piriformis

Answer 5

1. Inferior gluteal nerve and vessels
2. Sciatic nerve
3. Nerve to quadratus femoris
4. Posterior cutaneous nerve of thigh
5. Nerve to obturator internus
   6.internal pudendal vessels
6. Pudendal vessels

Question 6

Structures that enter lesser sciatic foramen from greater sciatic Foramen

Answer 6

1. Nerve to obturator internus
2. Internal pudendal vessels
3. Pudendal nerve

Question 7

Contents of lesser sciatic foramen

Answer 7

1.tendon of obturator internus
2. Structures from greater to lesser sciatic foramen; Nerve to obturator internus, pudendal nerve and vessels

Question 8

Boundaries of the gluteal region

Answer 8

Superior- iliac crest
Inferior- gluteal fold
Middle- natal cleft
Lateral-

Question 9

Nerves of gluteal region and roots

Answer 9

Superior gluteal nerve- L4,L5,S1
Inferior gluteal nerve -
Nerve to obturator internus-L5,S1,S2
Nerve to quadratus femoris-L4,L5,S1
Pudendal nerve-
PIRIFORMIS-ventral rami S1,S2