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Anatomy Wokrshop

Join our detailed anatomy workshop covering the crucial muscles of the pelvis, hip, and femur, presented by Dr. Sung Ki-hyuk from Bundang Seoul National University Hospital. We'll explore the origins, insertions, actions, and innervations of key muscles such as the psoas major, iliacus, gluteus maximus, and hamstrings. Understand their roles in hip flexion, extension, abduction, and rotation. Enhance your knowledge of myology with practical insights into anatomical structures essential for movement and physical therapy.

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Anatomy Wokrshop

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  1. Anatomy Wokrshop Pelvis, hip and femur (myology 1) 분당서울대학교병원 정형외과 성기혁

  2. Anterior muscles of pelvis

  3. Psoas major Origin : T12-L5 vertebra Insertion : lesser trochanter Action : powerful hip flexion Innervation: femoral N.

  4. Psoas minor Origin : T12 & L1 vertebra Insertion : pectineal line Action : weak flexion of trunk

  5. Iliacus Origin : iliac fossa Insertion : lesser trochanter Action : powerful hip flexion Innervation: Femoral N.

  6. Gluteal muscles

  7. Origin : ilium & dorsal sacrum Insertion 1. gluteal tuberosity 2. iliotibial band Action 1. powerful extension 2. ER of hip Innervation: inferior gluteal N. Gluteus maximus

  8. Origin:ilium between anterior & posterior gluteal lines Insertion: greater trochanter Action: 1. powerful abduction 2. IR of hip 3. Balancing during walking Innervation : superior gluteal N. Gluteus medius

  9. Gluteus minimus Origin: ilium between anterior & inferior gluteal lines Insertion: anterior greater trochanter Action: 1. abduction & IR of hip 2. Assistgluteus medius during walking

  10. Trendelenburg sign

  11. Piriformis • Origin: • anterior sacrum • Insertion: superior greater trochanter • Action: • 1. hip ER • 2. hip abduction during flexion

  12. Obturator internus Origin 1. ischiopubic rami 2.obturator membrane Insertion: medial greater trochanter Action: 1. hip ER 2. hip abduction during flexion

  13. Superior & Inferior gemellus Origin: ischial spine(sup.) ischial tuberosity(inf.) Insertion: medial greater trochanter Action: 1. hip ER 2. hip abduction during flexion

  14. Quadratus femoris Origin: ischial tuberosity Insertion: intertrochanteric crest Action: hip ER

  15. Posterior femoral muscles (Hamstrings)

  16. Biceps femoris(long head) Origin: ischial tuberosity Insertion: head of fibula Action: 1. hip extension 2. knee flexion & ER Innervation: tibial division of sciatic N.

  17. Biceps femoris(short head) Origin: 1. linea aspera, 2. supracondylar line Insertion: fibula, lateral tibia Action: knee flexion & ER

  18. Semitendinosus Origin: ischial tuberosity Insertion: proximal medial tibia Action: 1. hip extension 2. knee flexion & IR Innervation: tibial division of sciatic N.

  19. Semimembranosus Origin: ischial tuberosity Insertion: posterior medial tibial condyle Action: 1. hip extension 2. knee flexion & IR Innervation: Tibial division of sciatic N.

  20. Psoas & iliacus: hip flexion Gluteus medius & minimus: hip abduction & IR Gluteus maximus & hamstrings: hip extension Piriformis & short rotators: hip ER

  21. Thank you !!

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