Lower Limb Muscles - Memorizing Flashcards
Gluteus medius origin
Between superior and inferior gluteal lines on lateral ilium
Sartorius action
LATERAL rotation, abduction, flexes femur and knee
Biceps femoris insertion
Head of fibula, lateral condyle of tibia
Adductor longus innervation
Obtrurator nerve
Semimembranosis action
MEDIAL rotation at thigh, extension of thigh, flexion of knee
Semitendinosis origin
Ischial tuberosity
Gracilis action
MEDIAL ROTATION of LEG, flexes leg, adducts thigh
Extensor hallucis longus insertion
Distal phalanx of big toe
Popliteal origin
lateral condyle of femur, lateral meniscus of knee
Extensor digitorum longus insertion
Middle and distal phalanges of toes 2-5
Adductor longus insertion
Linea aspera
Peroneus brevis insertion
Via a tendon that runs beneath LATERAL MALLEOLUS an inserts into 5th metatarsal
Semitendinosis action (rotation)
Medially rotates
Biceps femoris action
extends thigh, flexes at knee, laterally rotates leg
Extensor digitorum longus origin
Lateral condyle of tibia, proximal 1/3 of fibula, interosseous membrane
Peroneus longus insertion
Travels under the lateral foot, inserts on medial cuneiform and first metatarsal
Originates on pubis
Adductor longus
Plantaris origin
Posterior femur above lateral condyle
Originates on AIIS
Rectus femoris
Extensor hallucis longus origin
Shaft of fibula and interosseous membrane
Biceps femoris origin
Long head = ischial tuberosity and linea aspera, short head = distal femur
Posterior tibialis insertion
Runs beneath medial malleolus, inserts onto metatarsals 2-4 and tarsals
Action of extensor digitorum longus
Prime mover of toe extension and dorsiflexes foot
Flexor hallicus longus action
Plantar flexes and inverts foot, push off
Gluteus maximus origin
Dorsal ilium, sacrum, coccyx
Iliopsoas innervation
Femoral nerve (L2-L3)
Soleus origin
Superior tibia, fibula, interosseous membrane
Gluteus medius insertion
Via a tendon into the greater trochanter of the femur
Gracilis origin
Inferior and ischial ramus and body of pubis
Popliteal insertion
Medial tibia
Semitendinosis insertion
Medial aspect of upper tibial shaft
Peroneus longus innervation
Superficial fibular nerve
Flexor digitorum action
INVERTS foot, grips ground during walking
Gluteus minimus origin
Between anterior and inferior gluteal lines on external ilium
Vastus lateralis origin
Greater trochanter, linea aspera, intertrochanteric line
Gluteus minimus action
Abducts and MEDIALLY rotates thigh
Flexor digitorum insertion
Behind medial malleolus to distal phalanges of toe 2-5
Psoas major origin
T12, L1-L5 transverse processes
Iliopsoas insertion
Lesser trochanter of femur via tendon
Flexor digitorum origin
Posterior tibia
Adductor longus origin
Pubis
Flexor hallicus longus origin
Middle part of shaft of fibula and interosseous membrane
Vastus medialis origin
Medial supracondylar line, linea aspera, intertrochanteric line
Peroneus longus action
PLANTAR FLEXES foot and everts foot
Posterior tibialis action
Prime mover of foot inversion, plantar flexes foot
Gluteus maximus action
Extends, abducts and LATERALLY rotates thigh
Adductor magnus origin
Ischial and pubic rami, ischial tuberosity
Adductor magnus insertion
Linea aspera, supracondylar line, adductor tubercle of femur
Quadriceps insertion
Patella via patellar ligament, and TIBIAL TUBEROSITY
Gracilis insertion
Medial surface of tibia (crosses knee and hip)
Biceps femoris innervation
Tibial nerve to LONG head, fibular nerve to SHORT head
Gastrocnemius origin
Two heads from medial and lateral condyles of femur
Originates on ASIS
Sartorius
Peroneus brevis action
Plantar flexes and everts foot
Iliacus origin
Iliac fossa, ala of sacrum
Flexor hallicus longus insertion
Tendon passes under foot, distal phalanx of big toe (digit 1)
Semimembranosis insertion
Via a long tendon into the medial condyle of tibia and lateral condyle of femur
Peroneus longus origin
Head of fibula
Tibialis anterior insertion
Medial cuneiform and first metacarpal
Tibialis anterior origin
Lateral condyle and upper 2/3 of tibial shaft, interosseous membrane
Postural locomotor muscle during walking and running
Soleus
Tensor fascia latae action
Abducts, flexes, medially rotates thigh
Peroneus brevis origin
Distal shaft of lateral fibula
Peroneus brevis innervation
Superficial fibular nerve
Gluteus maximus insertion
Gluteal tuberosity, ILIOTIBIAL TRACT
Pectineus insertion
Lesser trochanter to linea aspera
Tibialis anterior innervation
Deep fibular nerve
Gluteus medius function
Abducts and MEDIALLY rotates thigh, steadies pelvis during walking
Semimembranosis origin
Ischial tuberosity
Tibialis anterior action
Prime mover of dorsiflexion, everts foot
Semimembranosis innervation
Tibial nerve (sciatic)
Gluteus minimus insertion
Greater trochanter of femur
Rectus femoris origin
AIIS (CROSSES HIP AND KNEE)
Posterior tibialis origin
Posterior tibia, posterior fibula, interosseous membrane
Vastus intermedialis origin
Anterior and lateral surfaces of femur