hip myology

Question 1

iliacus

Answer 1

*Origin- Anterior Iliac Fossa
*Insertion- Lesser Trochanter via iliopsoas tendon
*Actions- Hip flexion, Hip lateral rotation
*Nerve Supply- Femoral Nerve L3,4

Question 1

psoas major

Answer 1

*Origin- Transverse processes of L1‐L5 Vertebral Bodies and discs of T12-L4
*Insertion- Lesser trochanter via IP tendon
*Actions- Hip flexion, Hip lateral rotation
*Nerve supply- Ventral Rami L1,2,3

Question 2

gluteus maximus

Answer 2

*Origin- Posterior gluteal line
Posterior surface of sacrum and coccyx Sacrotuberous ligament
*Insertion- iliotibial tract, Gluteal tuberosity of femur
*Action- Hip extension, Hip lateral rotation
*Nerve supply- Inferior gluteal nerve L5,S1,S2

Question 3

gluteus medius

Answer 3

*Origin- Outer aspect of ilium between iliac crest and anterior/posterior gluteal lines, Upper fascia (aponeurosis)
*Insertion- Superior aspect of greater trochanter
*Actions- hip abduction, Medial hip rotation, Stabilises pelvis during gait
*Nerve Supply- Superior Gluteal Nerve L4,5,S1

Question 4

piriformis

Answer 4

*Origin- Anterior surface of the sacrum
*Insertion- Passes through greater sciatic notch, Trochanteric fossa, medial side of Greater Trochanter
*Action- Hip lateral rotation
*Nerve Supply- Nerve to piriformis S1,2

Question 5

tensor fascia latae (TFL)

Answer 5

*Origin- Anterior 3RD aspect of iliac crest to ASIS
*Insertion- Anterior aspect of ilio-tibial tract below greater trochanter
*Actions- Hip flexion, Hip medial rotation, Hip abduction
*Nerve supply- Superior gluteal nerve L4,5,S1

Question 6

adductor longus

Answer 6

*Origin- Anterior surface of the pubis, inferior to pubic tubercle
*Insertion- Medial lip of Linea Aspera on middle half of femur
*Actions- Hip adduction, Aids in hip flexion
*Nerve Supply- Obturator Nerve L2,3,4

Question 7

adductor brevis

Answer 7

*Origin- Body of inferior pubic ramus
*Insertion- Superior portion of Linea Aspera
*Action- Hip adduction
*Nerve Supply- Obturator nerve L2,3,4

Question 8

adductor Magnus

Answer 8

*Origin-
Anterior fibres:
-Inferior pubic ramus
Oblique fibres:
-Ischial ramus
Posterior fibres:
-Ischial tuberosity
*Insertion- Proximal 3rd Linea Aspera Adductor tubercle
*Actions- Aids hip extension
*Nerve Supply- Obturator nerve L2,3,4 & Tibial nerve of sciatic bundle L4,5

Question 9

gracilis

Answer 9

*Origin- Body of pubis and inferior pubic ramus
*Insertion- Medial aspect of tibial shaft (Contributes to Pes Anserine)
*Actions- Hip adduction, Knee Flexion, Medial rotation of the tibia
*Nerve Supply- Obturator Nerve L2,3,4