Gluteal Region Flashcards
Which bones make up the hip bone?
The hip bone is formed by the fusion of the ilium, pubis, and ischiem in the acetabulum
List muscles of the gluteal region
Gluteus maximus
Gluteus medius
Gluteus minimus
Tensor fasciae latae
Piriformis
Obturator internus
Superior gemellus
Quadratus femoris
Which ligament extends from the ischial tuberosity to the posterior iliac spines, lower sacrum , and coccyx?
Sacrotuberous ligament
Which ligament extends from the ischial spine to the lower sacrum and coccyx?
Sacrospinous ligament
Role of the greater sciatic foramen
Provides a pathway for the piriformis muscle, superior and inferior gluteal vessels and nerves, internal pudendal vessels and pudendal nerve, sciatic nerve, posterior femoral cutaneous nerve, and the nerves to the obturator internus and quadratus femoris muscles
Role of the lesse sciatic foramen
Provides a pathway for the tendon of the obsturator internus, the nerve to the obturator internus, and the internal pudendal vessels and pudendal nerve
Which structures pass through both the greater and lesser sciatic foramen?
Pudendal nerve
Internal pudendal vessels
Nerve to the obturator internus
The iliotibial tract provides insertion for the __________ and _____________ muscles.
Gluteus maximus; tensor fascia latae muscles
Function of the iliotiial tract
Helps form the fibrous capsule of the knee joint and is important in maintaining posture and locomotion
Function of the fascia lata
The fascia lata surrounds the tensor fasciae latae muscle. It is a fibrous sheath that encircles the thigh subcutaneously. This encircling of the muscle allows the muscles to be bound together tightly.
Gluteus Maximus
Origin
Insertion
Innervation
Function
Blood Supply
Origin: Ilium, sacrum, coccyx, sacrotuberous ligament
Insertion: Gluteal tuberosity. Iliotibial tract
Innervation: Inferior gluteal
Action: Extends and rotates thigh laterally
Blood Supply: Superior and inferior gluteal arteries
Gluteus medius
Origin
Insertion
Innervation
Action
Blood supply
Origin: Ilium between iliac crest, and anterior and posterior gluteal lines
Insertion: Greater trochanter
Nerve: Superior gluteal
Action: Abducts and rotates thigh medially, stabilizes pelvis
Blood supply: Superor gluteal artery
Gluteus Minimus
Origin
Insertion
Innervation
Action
Blood supply
Origin: Ilium between anterior and inferior gluteal lines
Insertion: Greater trochanter
Innervation: Superior gluteal
Action: Acducts and rotates thigh medially
Blood supply: Superior gluteal artery
Tensor fasciae latae
Origin
Insertion
Innervation
Action
Blood supply
Origin: Iliac crest, anterior-superior iliac spine
Insertion: Iliotibial tract
Innervation: Superior gluteal
Action: Flexion, abducts, and rotates thigh medially
Piriformis
Origin
Insertion
Innervation
Action
Blood supply
Origin: Pelvic surface of sacrum, sacrotuberous ligament
Insertion: Upper end of greater trochanter
Innervation: Sacral (S1-S2)
Action: Rotates thigh laterally
Blood supply: Inferior gluteal, lateral sacral and superior gluteal artery,
