Transcript GLUTEAL REGION - Home - Qassim College of Medicine

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
GS
OI
GI
QF
MUSCLES OF GLUTEAL REGION
MUSCLE
NERVE SUPPLY
1
2
Gluteus maximus
Inferior gluteal N
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
1
Gluteus maximus
2
3
Gluteus medius
4
5
6
7
8
9
Pyriformis
Gluteus minimus
ACTION
Extension of thigh
Lat. Rotation of thigh
Supports the extended knee
Abduction of thigh
Med. Rotation of thigh
Maintain balance of the body when
the opposite foot is off the ground
Obturator externus
Obturator internus
Gamellus superior
Gamellus inferior
Quadratus femoris
Lat. Rotation of thigh
STRUCTURES DEEP TO GLUTEUS
MAXIMUS
• MUSCLES
• VESSELS
• NERVES
• BONES AND JOINTS
• LIGAMENTS
• BURSAE
MUSCLES DEEP TO GLUTEUS MAXIMUS
1. Gluteus medius
2. Gluteus minimus
3. Reflected head of rectus
femoris
4. Pyriformis
5. Gemillus superuir
6. Obturator internus
7. Gamellus inferior
8. Quadratus femoris
9. Obturator externus
10. Origin of hamstrings
11. Attachment of pubic fibres
of adductor magnus
1
2
4
8
GM
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.
2.
3.
4.
5.
6.
7.
8.
Superior gluteal
Inferior gluteal
Sciatic
Post. Cut. N of thigh
N. to quadratus femoris
Pudendal N
N to obturator internus
Perforating cut. nerves
3
4
3
•
•
•
•
•
•
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