MUSCLES OF GLUTEAL REGION Flashcards
What are the superficial muscles of the gluteal region?
Gluteus maximus, gluteus medius, gluteus minimus
What covers the muscles of the gluteus region?
Fascia
What is the gluteal region responsible for?
Upright sitting position
Where does the gluteal region end superiorly?
Iliac crest
Where does the gluteal region end inferiorly?
Gluteal fold
What separates the gluteus maximus?
Intermediate gluteus cleft
Where is the anus allocated?
Intermediate gluteal cleft
Where is the gluteal region located?
Lies behind the pelvis
What are the deep muscles of the gluteal region?
Superior and inferior gemellus, obturator internus, piriformis and quadratus femoris
Description of gluteus maximus
1.Largest and most superficial
2. Slopes at 45
Action of gluteal maximus
Extensor, Abductor, Lateral rotator of hip
Innervation of gluteal maximus
Inferior gluteal nerve
Innervation of Gluteus medius and Gluteus minimus
Superior gluteal nerve
Action of gluteus medius and gluteus minimus
Abductor
Medial rotation of hip
Maintains balance when opp foot is of the ground
Prevents opp pelvis from tilting downwards
Innervation of Tensor facia lata
Superior gluteal nerve
Action of Tensor fascia lata
Abductor
Medial rotator of hip
Stabilising the pelvis
Where is the intramuscular injection?
Upper outer quadrant of gluteal region
Muscles in the intramuscular injection
Gluteus medius
Gluteus minimus
Tensor facia lata
Innervation of piriformis
Ventral rami of S1&2
Action of piriformis
Lateral rotator of hip
Abductor
Sacrospinous ligament attachments
Sacrococcygeal junction to the ischial spine
Sacrotuberous ligament attachment
Lateral sacral and coccygeal region and medial ischial tuberosity
Funtion of sacrotuberous and sacrospinous lig.
Divides region into greater and lesser sciatic foramen
Innervation of obturator internus
Nerve to obturator internus
Innervation of superior gemellus
Nerve to obturator internus
Innervation of inferior gemellus
Nerve to quadratus femoris
Innervation of quadratus femoris
Nerve to quadratis femoris
Arterial supply of gluteal muscles
Superior and inferior gluteal arteries
Structures above piriformis
Superior gluteal nerve and vessels
Structures below piriformis
Inferior gluteal nerve and vessels, sciatic nerve, nerve to quadratus femoris, nerve to obturator internus, pudental nerve
