Exam 2 Flashcards
muscles of the talocrural (ankle) and subtalar (foot)
gastrocnemius
soleus
flexor digitorum longus
flexor hallucis longus
tibialis posterior
peroneus longus
peroneus brevis
tibialis anterior
peroneus tertius
extensor digitorum longus
extensor hallucis longus
gastrocnemius
origin - posterior, medial and lateral femoral condyles
insertion - posterior calcaneus (via Achilles tendon)
joint actions - knee flexion, ankle plantarflexion
soleus
origin - posterior, proximal tibia & fibula
insertion - posterior calcaneus (via Achilles tendon)
joint actions - ankle plantarflexion
flexor digitorum longus
origin - middle 1/3 of posterior tibia
insertion - distal phalanges of digits 2-5 (plantar)
joint actions - ankle plantarflexion, foot inversion, flexion of toes 2 -5
flexor hallucis longus
origin - middle 2/3 of the posterior fibula
insertion - distal phalanx of the 1st digit (plantar)
joint actions - ankle plantarflexion, foot inversion, great toe flexion
tibialis posterior
origin - posterior, proximal tibia & fibula
insertion - navicular, cuboid, cuneiforms, and base of metatarsals 2 - 5
joint actions - ankle plantarflexion, foot inversion
peroneus longus
origin - head and upper 2/3 of the lateral fibula
insertion - base of the 1st metatarsal and medial cuneiform (plantar)
joint actions - ankle plantarflexion, foot eversion
peroneus brevis
origin - middle 2/3 of lateral fibula
insertion - base of the 5th metatarsal (plantar)
joint actions - ankle plantarflexion, foot eversion
tibialis anterior
origin - upper 2/3 of lateral tibia
insertion - base of the 1st metatarsal, medial cuneiform
joint actions - ankle dorsiflexion, foot inversion
peroneus tertius
origin - distal 1/3 of anterior fibula
insertion - base of the 5th metatarsal (dorsal)
joint actions - ankle dorsiflexion, foot eversion
extensor digitorum longus
origin - upper 2/3 of anterior fibula
insertion - distal phalanges of digits 2 - 5 (dorsal)
joint actions - ankle dorsiflexion, foot eversion, extension of toes 2 - 5
extensor hallucis longus
origin - middle 2/3 of anterior fibula
insertion - distal phalanx of great toe
joint actions - ankle dorsiflexion, extension of great toe
dorsiflexors
Tibialis anterior
Peroneus Tertius
Extensor digitorum longus
Extensor hallucis longus
plantarflexors
gastrocnemius
soleus
Flexor digitorium longus
Flexor hallucis longus
Tibialis posterior
Peroneus longus
Peroneus brevis
subtalar inversion
Flexor digitorum longus
Flexor hallucis longus
Tibialis posterior
Tibialis anterior
subtalar eversion
Peroneus longus
Peroneus brevis
Peroneus tertius
Extensor digitorum longus
toe flexion
Flexor digitorum longus
toe extension
Flexor digitoum longus
Extensor digitorum longus
Extensor hallucis longus
coxafemoral joint/pelvis muscles
iliopsoas (psoas major + iliacus)
pectineus
tensor fascia latae (tfl)
gluteus maximus
gluteus medius
gluteus minimus
ADductor longus
ADductor brevis
ADductor magnus
deep lateral rotators
Piriformis
Obturator internus
Superior gemellus
Inferior gemellus
Quadratus femoris
Obturator externus
iliopsoas
origin: iliac fossa, transverse processed of L1-L5
insertion: lesser trochanter of femur
joint actions: hip flexion, lumbar flexion, anterior pelvic tilt
pectineus
origin: superior pubic ramus
insertion: lesser trochanter of femur and pectineal line of femur
joint actions: hip flexion, hip ADduction
tensor fascia latae (tfl)
origin: anterior iliac crest
insertion: anterolateral proximal tibia (Gerdy’s tubercle)
joint actions: hip ABduction, hip flexio, hip internal rotation, ipsilateral lateral pelvic tilt
gluteus maximus
origin: posterior ilium, sacrum and lumbar fascia
insertion: gluteal tuberosity and iliotibial tract
joint actions: hip extension, hip external rotation
gluteus medius
origin: superior lateral ilium
insertion: greater trochanter of femur
JOINT ACTION(s):
Hip abduction, ipsilateral lateral tilt of the pelvis, hip external rotation (posterior fibers) and hip internal rotation (anterior fibers)
gluteus minimus
origin: inferior lateral ilium
insertion: greater trochanter of femur
JOINT ACTION(s) :
Hip abduction, hip internal rotation
ADductor longus
origin: anterior pubic crest
insertion: middle 1/3 linea aspera
JOINT ACTION(s) :
Hip adduction
ADductor brevis
origin: inferior pubic ramus
insertion: proximal línea aspera
JOINT ACTION(s) :
Hip adduction
adductor magnus
origin: inferior pubic ramus and ischial tuberosity
insertion: adductor tubercle and línea aspera
JOINT ACTION(s) :
Hip adduction, hip extension