LE Muscles Origin/Insertions Flashcards
Biceps Femoris LH (O)
Ischial tuberosity
Biceps Femoris SH (O)
Distal 1/2 linea aspera
Biceps Femoris LH/SH (I)
Head of fibula
Semitendinosus (O)
Ischial tuberosity
Semitendinosus (I)
Proximal anterior medial tibial shaft (pes anserine)
Semimembranosus (O)
Ischial Tuberosity
Semimembranosus (I)
Posterior medial tibial condyle, may insert on posterior medial meniscus
Gastrocnemius (O)
Superior lateral and medial condyles of femur
Gastrocnemius (I)
Calcaneus (via calcaneal tendon)
Soleus (O)
Proximal fibular head and shaft of fibula, proximal posterior shaft of tibia at soleal line
Soleus (I)
Posterior calcaneus via calcaneal tendon
Plantaris (O)
Lower border of supracondylar ridge (just above lateral head of gastroc)
Plantaris (I)
Posterior calcaneus (medial edge of calcaneal tendon)
Popliteus (O)
Lateral femoral (epi)condyle
Popliteus (I)
Posterior proximal medial tibial shaft
Tibialis posterior (O)
Interosseous membrane, posterior surface of tibia, proximal 2/3 of medial shaft of fibula
Tibialis posterior (I)
Inferior navicular, slips to inferior surfaces of cuboid, cuneiform III, metatarsals 2-4
Flexor digitorum longus (O)
Posterior surface of shaft of tibia
Flexor digitorum longus (I)
Plantar surface of distal phalanges 2-5
Flexor hallicus longus (O)
Inferior 2/3 of posterior fibula, interosseous membrane
Flexor hallicus longus (I)
Inferior surface of distal phalanx (great toe)
Fibularis (peroneus) longus (O)
IOM, posterior surface of tibia, head and proximal 2/3 of lateral surface of fibula
Fibularis (peroneus) longus (I)
Base of 1st metatarsal, cuneiform I
Fibularis (peroneus) brevis (O)
Lateral distal 2/3 of fibula
Fibularis (peroneus) brevis (I)
Lateral base of 5th metatarsal
Gluteus Maximus (O)
Posterior gluteal line, posterior inferior surface of sacrum, lateral coccyx, Sacrotuberous ligament, gluteal aponeurosis
Gluteus Maximus (I)
Lower fibers: gluteal tuberosity
Upper fibers: iliotibial tract, then lateral condyle of tibia via IT band
Gluteus medius (O)
Gluteal surface of ilium, from iliac crest to posterior gluteal line and anterior (middle) gluteal line and gluteal aponeurosis
Gluteus medius (I)
(Lateral surface of) greater trochanter
Gluteus minimus (O)
External ilium between middle and inferior gluteal lines
Gluteus minimus (I)
Anterior greater trochanter
Tensor fasciae latae (O)
Anterior iliac crest, ASIS
Tensor fasciae latae (I)
IT band to lateral proximal anterior tibial shaft (at gerdy’s tubercle)
Piriformis (O)
Pelvic surface of sacrum
Piriformis (I)
Greater trochanter
Quadratus Femoris (O)
Ischial tuberosity
Quadratus Femoris (I)
Quadrate line
Obturator internus (O)
Internal or pelvic surface of Obturator membrane and margin of Obturator foramen
Obturator internus (I)
Greater trochanter
Obturator externus (O)
Rami of pubis and ischium and external surface of Obturator membrane
Obturator externus (I)
Greater trochanter
Gamellus superior (O)
Spine of ischium
Gamellus superior (I)
Greater trochanter
Gamellus inferior (O)
Ischial tuberosity
Gamellus inferior (I)
Greater trochanter
Sartorius (O)
ASIS
Sartorius (I)
Pes anserine
Rectus femoris (O)
AIIS and superior acetabulum
Rectus femoris (I)
Tibial tuberosity (via patellar tendon and patellar ligament)
Vastus lateralis (O)
Greater trochanter, upper lateral lip of linea aspera
Vastus lateralis (I)
Tibial tuberosity
Vastus medialis (O)
Intertrochanteric line, medial lip of linea aspera
Vastus medialis (I)
Tibial tuberosity
Vastus intermedius (O)
Proximal 2/3 of anterior and lateral shaft of femur
Vastus intermedius (I)
Tibial tuberosity
Iliopsoas (O)
Psoas major: T12-L5 vertebral bodies, L1-L5 TPs and IVDs
Iliacus: iliac crest, iliac fossa, anterior SI ligaments
Iliopsoas (I)
Lesser trochanter
Pectineus (O)
Superior ramus of pubis
Pectineus (I)
Pectineal line of femur - inferior to lesser trochanter
Gracilis (O)
Inferior pubic symphysis, body, and inferior ramus of pubis
Gracilis (I)
Medial proximal anterior tibial shaft (via pes anserine tendon)
Adductor longus (O)
Anterior pubis, pubic crest, pubic symphysis
Adductor longus (I)
Linea aspera between Vastus medialis and adductor Magnus (middle 1/3 of femur)
Adductor brevis (O)
Body and inferior ramus of pubis
Adductor brevis (I)
Pectineal line, proximal linea aspera
Adductor Magnus (O)
Adductor part: inferior ramus of pubis and ramus of ischium
Hamstring part: ischial tuberosity
Adductor Magnus (I)
Adductor part: gluteal tuberosity, linea aspera, medial supracondylar line
Hamstring part: adductor tubercle
Tibialis anterior (O)
Lateral condyle, superior half of lateral tibia and IOM
Tibialis anterior (I)
Inferior base of 1st metatarsal, medial/inferior medial cuneiform
Extensor digitorum longus (O)
Lateral condyle of tibia, superior 3/4 of fibula, IOM
Extensor digitorum longus (I)
Middle & distal phalanges of digits 2-5
Extensor hallicus longus (O)
Middle anterior fibula, IOM
Extensor hallicus longus (I)
Dorsal base of distal phalanx I
Fibularis (peroneus) tertius (O)
Inferior 1/3 of anterior fibula, IOM
Fibularis (peroneus) tertius (I)
Base of 5th metatarsal
Rectus abdominis (O)
Pubic crest, symphysis, tubercle
Rectus abdominis (I)
Pubis, ribs 5-7, xiphoid process
External oblique (O)
Sternum, external inferior surfaces of ribs 5-12
External oblique (I)
Pubis, linea alba via aponeurosis, iliac crest
Internal oblique (O)
Lateral half of inguinal ligament, middle lip of iliac crest, thoracolumbar fascia
Internal oblique (I)
Pubis, inferior border of ribs 9-12, linea alba, aponeurosis fuses with external oblique to form Rectus sheath
Transversus abdominis (O)
Lateral 1/3 of inguinal ligament, inner lip of iliac crest, inner surface of costal cartilages 7-12, thoracolumbar fascia
Transversus abdominis (I)
Linea alba, pubis