GLUTEAL REGION
DR TAHIR HUSSAIN
OBJECTIVES
• Arrange the muscles of the gluteal region and give their actions and nerve supply.
• Enumerate the structures deep to gluteus maximus muscle.
GLUTEUS MAXIMUS
ARRANGEMENT OF MUSCLES
GMax GMed
GMin
Piri
QF
OI
GS
GI
MUSCLES OF GLUTEAL REGION
MUSCLE NERVE SUPPLY
1 Gluteus maximus Inferior gluteal N
2 Gluteus medius Superior gluteal N
3 Gluteus minimus Superior gluteal N
4 Pyriformis N. to pyriformis
5 Obturator externus
Obturator N
6 Obturator internus
N. to obturator internus
7 Gamellus superior N. to obturator internus
8 Gamellus inferior N. To qudratus femoris
9 Quadratus femoris
N. To qudratus femoris
MUSCLES OF GLUTEAL REGION ACTION
MUSCLE ACTION
1 Gluteus maximus
Extension of thighLat. Rotation of thighSupports the extended knee
2 Gluteus medius Abduction of thighMed. Rotation of thighMaintain balance of the body when the opposite foot is off the ground
3 Gluteus minimus
4 Pyriformis
Lat. Rotation of thigh
5 Obturator externus
6 Obturator internus
7 Gamellus superior
8 Gamellus inferior
9 Quadratus femoris
STRUCTURES DEEP TO GLUTEUS MAXIMUS
• MUSCLES
• VESSELS
• NERVES
• BONES AND JOINTS
• LIGAMENTS
• BURSAE
MUSCLES DEEP TO GLUTEUS MAXIMUS
1. Gluteus medius2. Gluteus minimus3. Reflected head of
rectus femoris4. Pyriformis5. Gemillus superuir6. Obturator internus 7. Gamellus inferior8. Quadratus femoris9. Obturator externus10.Origin of hamstrings11.Attachment of pubic
fibres of adductor magnus
12
4
8GM
VESSELS DEEP TO GLUTEUS MAXIMUS
• Superior gluteal• Inferior gluteal• Internal pudendal• Ascending br. Of med. Circumflex
femoral• Trochanteric anastomosis• Cruciate anastomosis• First perforating
NERVES DEEP TO GLUTEUS MAXIMUS
1. Superior gluteal2. Inferior gluteal3. Sciatic4. Post. Cut. N of thigh5. N. to quadratus
femoris6. Pudendal N7. N to obturator
internus8. Perforating cut.
nerves
3
3
4
BONES AND JOINTS DEEP TO GLUTEUS MAXIMUS
• Ilium• Ischium with
ischial tuberosity• Upper end of
femor with greater trochanter
• Sacrum and coccyx• Hip joint• Sacro-iliac joint
LIGAMENTS AND BURSAE DEEP TO GLUTEUS MAXIMUS
• LIGAMENTS– Sacrotuberous– Sacrospinus– Ischiofemoral
• BURSAE– Trochanteric bursa
of gluteus maximus– Bursa over the
ischial tuberosity– Bursa b/w the
gluteus maximus and vastus lateralis
THE END
ANY QUESTIONS
THE END
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