Hip + Leg + Foot muscles Flashcards
gluteus maximus action? origin and insertion?
action = extend and laterally rotate thigh
origin = liliac crest, sacrum, coccyx
insertion = tensor fascia latae and femur
gluteus medius action? origin and insertion?
action = abduct and medially rotate thigh
origin = iliac crest
insertion = greatest trochanter of femur
illiacus action?
flexes thigh
iliopsoas action?
flexes thigh
obturator internum action?
laterally rotates thigh
piriformis action?
laterally rotates thigh
psoas major action? origin and insertion?
action = flexes thigh
origin = T12-L5 vertebrae
insertion = lesser trochanter of femur
tensor fascia latae action?
abducts and medially rotates thigh
adductor brevis action? origin and insertion?
action = adducts and flexes thigh
origin = pubis
insertion = linea aspera of femur
adductor longus action? origin and insertion?
action = adducts and flexes thigh
origin = pubis
insertion = linea aspera of femur
adductor magnus action? origin and insertion?
action = adducts, flexes, extends and laterally rotates thigh
origin = pubis and ischial tuberosity
insertion = linea aspera of femur
gracilis action? origin and insertion?
action = adducts and flexes thigh
origin = pubis
insertion = tibia
pectineus action?
adducts and flexes thigh
vastus intermedius action? origin and insertion?
action = extends leg
origin = femur
insertion = quadriceps tendon
vastus lateralis action? origin and insertion?
action = extends leg
origin = femur
insertion = quadriceps tendon
vastus medialis action? origin and insertion?
action = extends leg
origin = femur
insertion = quadriceps tendon
rectus femoris action? origin and insertion?
action = extends leg and flexes thigh
origin = iliac spine
insertion = quadriceps tendon
sartoris action? origin and insertion?
action = flexes and rotates thigh laterally, flexes and rotates leg medially
origin = iliac spine
insertion = tibial tuberosity
biceps femoris (long head) action? origin and insertion?
action = extends thigh and flexes leg
origin = ischium
insertion = fibula
biceps femoris (short head) action? origin and insertion?
action = flex leg
origin = femur
insertion = fibula
semimembranosus action? origin and insertion?
action = extends thigh and flexes leg
origin = ischium
insertion = tibia
semitendinosus action? origin and insertion?
action = extends thigh and flexes leg
origin = ischium
insertion = tibia
extensor digitorum longus of foot action?
dorsiflexion of foot and extension of digits 2-5
extensor hallucis longus action?
dorsiflexion of foot and extension of digit 1 (big toe)
tibialis anterior action?
dorsiflexion and inversion of the foot
peroneus (fibularis) brevis action?
foot eversion
peroneus (fibularis) longus action?
foot eversion
flexor digitorum longus action?
plantar flexion of foot and flexion of digits 2-5
flexor hallucis longus action?
plantar flexion of foot and flexion of digit 1 (big toe)
gastrocnemius (lateral/great head) action? origin and insertion?
action = flexes leg and plantar flexion of foot
origin = femur
insertion = calcaneal tendon
gastrocnemius (medial head) action? origin and insertion?
action = flexes leg and plantar flexion of foot
origin = femur
insertion = calcaneal tendon
popliteus action?
flexes leg
soleus action? origin and insertion?
action = plantar flexion of foot
origin = fibula and tibia
insertion = calcaneal tendon
tibialis posterior action?
plantar flexion and foot eversion
extensor digitorum brevis of foot action?
extends digits 2-4
extensor hallucis brevis action?
extends digit 1 (big toe)
flexor digiti minimi brevis action?
flexes digit 5 (pinky toe)
flexor digitorum brevis action?
flexes digits 2-5
flexor hallucis brevis action?
flexes digit 1 (big toe)
abductor hallucis action?
abducts digit 1 (big toe)
abductor digiti minimi action?
abducts digit 5 (pinky toe)
