Posterior Leg Muscles Flashcards
Gluteus Maximus
Extends thigh at hip
Assists in lateral rotation
Helps steady and support in standing up from sitting
Gluteus medius
abduction thigh at hip
medial rotation of thigh at hip
steadies leg when raising other leg
gluteus minimus
abduction thigh at hip
medial rotation of thigh at hip
steadies leg when raising other leg
Piriformis
lateral rotation of extended thigh at hip
abducts flexed thigh at hip
steadies femur head in acetabulum
obturator internus
lateral rotation of extended thigh at hip
abducts flexed thigh at hip
steadies femur head in acetabulum
Gemelli superior and inferior
lateral rotation of extended thigh at hip
abducts flexed thigh at hip
steadies femur head in acetabulum
quadratus femoris
laterally rotates thigh at hip
semitendinosus
extension of thigh at hip
flexion of knee
medial rotation of knee
extension of trunk if hip and knee are flexed
semimebranosus
extension of thigh at hip
flexion of knee
medial rotation of knee
extension of trunk if hip and knee are flexed
Bicep femoris long head
flexion of knee
lateral rotation of knee
extension of thigh at hip
Bicep femoris short head
flexion of knee
lateral rotation of knee
sciatic nerve
nerve that originates in the pelvis and runs down the length of the leg.
Splits into the tibular and common fibular nerve at some point along the back of the thigh before the knee.
popliteal artery
runs deep to the sciatic nerve along the back of the leg
gastricnemius
plantar flexion of foot at ankle
flexion of knee at knee joint
Soleus
Plantar flexion foot at ankle
plantaris
weak plantar flexion of foot at ankle
flexion of knee
popliteus
weakly flexion of leg at knee
unlocks knee
fixes tibia
flexor hallucis longus
flexion of big toe at all joints
weak plantar flexion at ankle
flexor digitorum longus
flexion of other toes
plantar flexion
tibialis posterior
plantar flexion of foot at ankle
inverts foot
