Hip Region II Flashcards
What bones make up the hip bone
Ilium ischium and pubis
What is the origin of gluteus maximus
Ileum - posterior to the posterior gluteal line + dorsal surface of sacrum and coccyx
What is the attachment of gluteus maximus
Lateral condyle of tibia
What is the innervation of gluteus maximus
Inferior gluteal nerve (L5 + S1,2)
What is the function of gluteus maximus
Extends and laterally rotates thigh
Describe gluteus maximus
O: ileum , posterior to the posterior gluteal line and the dorsal surface of the sacrum and coccyx
A: lateral condyle of the tibia
I: inferior gluteal nerve (L5 + S1,2)
Fun: extends and laterally rotates thigh
What is the origin of gluteus medius
Between anterior and posterior gluteal lines on the ileum
What is the attacment if the gluteus medius
Lateral surface of the greater trochanter of the femur
What is the innervation of the gluteus medius
Superior gluteal nerve (L4,5 S1)
What is the function of gluteus medius
Abduct + medially rotates thigh
Describe gluteus medius
O: between the anterior and posterior gluteal lines
A: lateral surface of the greater trochanter of femur
I: superior gluteal nerve (L4,5 S1)
Fun: abducts and medially rotates thigh
What is the origin of gluteus minimus
Between the anterior and inferior gluteal lines of the ileum
What is the attachment of gluteus minimus
Anterior surface of the greater trochanter of the femur
What is the innervation of the gluteus minimus
Superior gluteal nerve (L4,5 S1)
What is the function of gluteus minimus
Abduction and medial rotation of thigh
Describe gluteus minimus
O: between the anterior and inferior gluteal lines on the ileum
A: anterior surface of the greater trochanter of the femur
I: superior gluteal nerve (L4,5 and S1)
Fun: abducts and medially rotates thigh
What is the origin of tensor fasciae latte
ASIS
What is the attachment of tensor fascia latte
Iliotibial tract attaching to the condyle of the tibia
What is the innervation of tensor fascia latte
Superior gluteal nerve (L4,5 S1)
What is the function of tensor fascia latae
Flexion on thigh
What are the gluteal muscles
Gluteus maximus medius and minimus Tensor fascia latae Piriformis Obturator internus Gemelli Quadratics femoris
What are the lateral rotator gluteal muscles
Piriformis
Obturator internus
Gemelli
Quadratics femoris
What is the origin of piriformis
Ant surface of 2-4 sacral segments
What is the innervation of piriformis
Nerve to piriformis
What is the function of piriformis
Laterally rotates extended thigh
Abducts flexed thigh
And steadies femoral head in acetabulum
Describe piriformis
O: 2-4 sacral segments A: N/A I: nerve to piriformis Function: laterally rotates extended thigh Abducts flexed thigh And steadies head in acetabulum
What is the origin of obturator internus
Pelvic surface of ilium and ischium and obturator membrane
What is the innervation of obturator internus
Nerve to obturator internus (L5S1)
What is the function of obturator internus
Laterally rotates extended thigh, abducts the flexed thigh, steadies femoral head in acetabulum
Describe obturator internus
O: pelivis surface of ilium ischium and obturator membrane
A: N/A
I: nerve to obturator membrane (L5, S1)
Function: laterally rotates extended thigh, abducts flexed thigh and steadies femoral head in acetabulum
What is the origin of gemelli
Superior gemelli: ischial spine
Inferior: ischial tuberosity
What is the innervation of gemelli
Superior: nerve to obturator internus
Inferior: nerve to quadratics femoris
What is the function of gemelli
Laterally rotates thigh and steadies femoral head in acetabulum
Describe gemelli
O: superior- ischial spine Inferior- ischial tuberosity A: N/A I: sup: nerve to obturator internus Inf: nerve to quadratus internus Function: laterally rotates thigh and steadies femoral head in acetabulum
What is the origin of quadratus femoris
Lateral border of ischial tuberosity
What is the innervation of quadratus femoris
Nerve to quadratus femoris
What is the function of quadratus femoris
Laterally rotates thigh and steadies head of femur in acetabulum
Describe quadratus femoris
O: lateral border of ischial tuberosity
A: N/A
I: nerve to quadratus femoris
Function: laterally rotates thigh and steadies femoral head in acetabulum
What are the posterior thigh muscles
Semitendinous
Semimembranous
Biceps femoris
What is the origin of semitendinous
Ischial tuberosity
What is the attachment of semitendinous
Medial surface of superior part of tibia
What is the innervation of semitendinous
Tibial division of sciatica nerve (L5, S1,2)
What is the function of semitendinous
Extends thigh, flexes leg + rotates
Describe semitendinous
O: ischial tuberosity
A: medial surface of superior part of tibia
I: tibial division of sciatic nerve (L5, S1 + S2)
Fn: extends thigh, flexes leg + rotates leg medially when knee is flexed
What is the origin of semimembranous
ischial tuberosity
What is the attachment of semimembranous
posterior part of medial head of medial condyle of tibia
what is the innervation of semimembranous
tibial division of sciatic nerve (L5, S1, S2)
what is the function of semimembranous
extends thigh, flexes leg, rotates leg medially when knee is flexed
Describe semimembranous
O: ischial tuberosity
A: posterior part of medial condyle of tibia
I: tibial division of sciatic nerve (L5, S1, S2)
Fn: extends thigh, flexes knee, medial rotation of the leg when the knee is flexed
What is the origin of biceps femoris
long head: ischial tuberosity
short head: linea aspera + lateral supracondylar line of femur