Covers the muscles acting on the hip joint, grouped into the iliopsoas group, the superficial and deep layers of the gluteal muscles. For each muscle it gives origin, insertion, nerve supply, action and blood supply, with the iliacus, psoas and gluteal muscles set out separately. It also notes how the piriformis divides the greater sciatic foramen and lists the structures passing below it, summarised by the mnemonic PIN and PINS.
Topic 41 of 236 in the MU Pleven syllabus for Anatomy Bones and Muscles (Medicine, Year 2). The free AceMed note covers it in 4 sections, about 483 words (3 min of reading), with 14 flashcards.
In this note
HIP JOINT MUSCLES
Iliopsoas group:
Gluteal muscles:
Gluteal muscle
Iliopsoas group:
① iliacus m.
O: iliac fossa
I: Lesser trochanter of femur
I: femoral n.
F: trunk flexion.
B.S: iliolumbar, deep circumflex iliac, obturator and femoral art.
② Psoas major m.
O: vertebral bodies T12-L4
+ intervertebral discs T12-L4
+ transverse processes of L1-L5
I: Lesser trochanter of femur
I: Ant. rami of spinal nerves L1-L3
F: Flexion of the trunk.
B.S: Lumbar branch of iliolumbar art.
③ Psoas minor m.
O: vertebral bodies of T12 & L1 vertebrae
I: iliopubic eminence
I: Ant. rami of spinal n. L1
F: weak flexion of the trunk.
B.S: lumbar arteries.
Gluteal muscles:
→ Superficial layer:
① Gluteus maximus:
O: Lateroposterior surface of sacrum & coccyx + gluteal surface of ilium
I: Iliotibial tract of fascia lata m. + Gluteal tuberosity of femur
