Describe structure under cover gluteus maximus

1. Muscles 2. Vessels 3. Nerves 4. Bones 5. Joints 6. Ligaments 7. Bursae - Muscles - ( key ½,1,2,3,4) A) Key muscle is piriformis B) ½ muscle is reflected head of rectus

femoris C) The muscle which is single is quadratus

femoris D) The muscle which are in group two a) Superior gemelli & inferior gemellib) Obturator externus & internus E) The muscle which are in group three 1. Gluteus minimus 2. Gluteus medius F) The muscle which are in group four a) Semimembranous

b) Semitendineus c) Ischial fibres of adductor Magnusd) Biceps femoris - Vessels -

Can be remembered by pneumonics SIATICA S-superior gluteal artery

I-inferior gluteal artery

A-ascending branch of medial & lateral circumflex femoral artery

T- tronchanteric anastomosis

I-internal pudendal vessels

C-cruciate anastomosis

A-ascending branch of first perforating artery

-Nerves-

1. sciatic nerve (L4 5 S1 2 3 )

2. nerve to quadratus femoris ( L4 5 S 1 )

3. nerve to obturator internus ( L5 S 1 2 )

4. superior gluteal nerve ( L 4 5 S 1 )

5. inferior gluteal nerve ( L5 S 1 2 )

6. pudendal nerve ( S 2 3 4 )

7. posterior cutaneous nerve of thigh (S2 3 )

- bones -

A) part of hip bone

a) ilium

b) ischium

B) sacrum & coccyx

C) upper end of femur

- joints -

1. hip

2. sacroiliac

- ligaments –

1. sacrotuberous

2. sacrospinous

3. ischiofemoral

- bursae -

1. tronchanteric bursa = at greater tronchanter

2. bursa over Ischial tuberosity

3. bursa between gluteus maximus & vastus lateralis