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Hip Muscles. Anterior Muscles. Sartorius. O – ASIS I – Proximal anteromedial aspect of tibial condyle N – Femoral F – Hip FLx, ADD, ER Knee Flx & medial rotation. Can palpate off ASIS but difficult to palpate in medium to heavy legged persons. Rectus Femoris. O – AIIS I –
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Sartorius • O – • ASIS • I – • Proximal anteromedial aspect of tibial condyle • N – • Femoral • F – • Hip FLx, ADD, ER • Knee Flx & medial rotation Can palpate off ASIS but difficult to palpate in medium to heavy legged persons
Rectus Femoris • O – • AIIS • I – • Tibial tuberosity • N – • Femoral • F – • Knee EXT & Hip FLX Any place over anterior thigh
Psoas Major • O – • Transverse processes T12-L5 • Intervertebral Disks T12-L5 • I – • Lesser trochanter of femur • N – • Lumbar Plexus (L1-L4) • F – • Hip Flex & ER Cannot be palpated unless rectus abdominus is relaxed
Iliacus • O – • Illiac Fossa • I – • Lesser trochanter • N – • Femoral • F – • Hip Flx & ER • Assist with Hip ADD Cannot be palpated unless rectus abdominus is relaxed
Tensor Fascia Lata • O – • Iliac crest • I – • IT band and then into the knee via Gerdy’s tubercle • N – • Superior Gluteal • F – • Hip ABD, • Assist with knee Flx Slightly in front of greater trochanter
Gluteus Medius • O – • External surface of ilium between anterior & posterior gluteal lines • I – • greater trochanter • N – • Superior Gluteal • F – • Hip ABD, • Anterior fibers – IR & Flx • Posterior fibers -- ER and EXT Slightly in front and above the greater trochanter
Gluteus Minimus • O – • External surface of ilium between anterior and inferior lines • I – • Greater trochanter • N – • Superior Gluteal • F – • Hip ABD, Cannot be palpated
Gluteus Maximus • O – • Posterior gluteal line of ilium • Posterior surface of lower sacrum • Coccyx • I – • IT band and gluteal tuberosity • N – • Inferior Gluteal • F – • Hip EXT & ER • Upper fibers – Hip ABD • Lower Fibers – Hip ADD Wide area on posterior pelvis
Semitendinosus • O – • Ishial Tuberosity • I – • Proximal medial surface of tibia • N – • Sciatic (tibial) • F – • Knee flexion • Assists with hip EXT Near the knee on posteromedial side
Semimembranosus • O – • Ishial tuberosity • I – • Posteromedial apsect of medial tibial condyle • Medial meniscus • N – • Sciatic (tibial branch) • F – • Knee FLX • Assists with hip EXT Largely covered by other muscles, can palpate tendon on posteromedial aspect of tibia
Biceps Femoris • O – • Long Head • Ishial tuberosity • Short Head • Linea Aspera • I • fibular head • N – • Long Head – Sciatic (tibial) • Short Head – Sciatic (Peroneal) • F – • Knee FLX & Hip EXT Posterolateral side of distal knee
Piriformis • O – • Sacrum • I – • greater trochanter • N – • Sacral (L5-S2) • F – • Hip ER
Gemellus Superior • O – • ishium • I – • greater trochanter • N – • Sacral (L5-S2) • F – • Hip ER
Obturator Internus • O – • Ishium • I – • Greater trochanter • N – • Sacral (L4-L5, S1-S2) • F – • Hip ER
Gemellus Inferior • O – • Anterior sacrum • Posterior portions of ishium • Obturator foramen • I – • Superior and poster portions of greater trochanter • N – • Sacral (L4-L5, S1-S2) • F – • Hip ER
Obturator Externus • O – • Posterior portions of ishium • I – • Greater trochanter • N – • Obturator • F – • Hip ER
Quadratus Femoris • O – • Posterior portions of ishium • I – • Greater trochanter • N – • Sacral (L4 -S1) • F – • Hip ER
Pectineus Angle between the pubic bone and femur • O – • Superior ramus of pubis • I – • Pectineal line of femur • N – • Femoral • F – • Hip ADD
Adductor Brevis • O – • Body & Inferior pubic ramus • I – • linea aspera • N – • Obturator • F – • Hip ADD Cannot be palpated
Adductor Longus • O – • Pubic crest • I – • linea aspera • N – • Obturator • F – • Hip ADD Just below pubic bone on medial side
Adductor Magnus Posteromedial surface of thigh • O – • Inferior pubic ramus • Ishium ramus • Ishial tuberosity • I – • Line aspera • Adductor tubercle • N – • Anterior Portion --Obturator • Posterior Portion – Sciatic (Tibial) • F – • Hip ADD
Gracilis • O – • pubic symphysis • I – • Medial Tibia (Pes Anserine Tendon) • N – • Obturator • F – • Hip ADD • Assist knee Flx Medial side of thigh 2-3 inches below pubic bone