unit 3 origins, insertions, actions, and innervations

what is the origin of the iliopsoas?

lumbar vertebrae and iliac fossa

what is the insertion of the iliopsoas?

lesser trochanter

what is the action of the iliopsoas?

hip flexion

what is the innervation of the iliopsoas?

lumbar nerve/femoral nerve

what is the origin of the rectus femoris?

AIIS

what is the insertion of the rectus femoris?

tibial tubercle via the patellar tendon

what is the actions of the rectus femoris?

hip flexion and knee extension

what is the innervation of the rectus femoris?

femoral nerve

what is the origin of the sartorius?

ASIS

what is the insertion of the sartorius?

anterior medial condyle of the tibia wh

what is the action of the sartorius?

hip flexion, abduction, and external rotation. and knee flexion

what is the innervations of the sartorius?

femoral nerve

what is the origin of the Tensor fascia latae (TFL)

iliac crest and ASIS

what is the insertion of the TFL?

IT band to lateral tibial condyle

what is the action of the TFL?

hip flexion, abduction, and internal rotation

what is the innervation of the TFL?

superior gluteal nerve

what is the origin of the gluteus medius?

outer ilium below crest

what is the insertion of the gluteus medius?

lateral greater trochanter

what is the action of the gluteus medius?

hip abduction
anterior fibers flex and internally rotate
posterior fibers extend and externally rotate

what is the innervation of the gluteus medius?

superior gluteal nerve

what is the origin of the gluteus maximus?

sacrum and posterior iliac crest

what is the insertion of the gluteus maximus?

posterior femur and IT band

what is the action of the gluteus maximus?

hip extension, and external rotation

what is the innervation of the gluteus maximus?

inferior gluteal nerve

what is the origin of the biceps femoris?

long head = ishial tuberosity
short head = posterior femur

what is the insertion of the biceps femoris?

lateral condyle of the tibia and fibular head

what is the action of the biceps femoris?

hip extension, external rotation, knee flexion

what is the innervation of the biceps femoris?

sciatic nerve

what is the origin of the semitendonosis and semimembranosis?

ishial tuberosity

what is the insertion of the semitendonosis and semimembranosis?

medial condyle of tibia

what is the action of the semitendonosis and semimembranosis?

hip extension, internal rotation, knee flexion,

whats the innervation of the semitendonosis and semimembranosis?

sciatic nerve

what is the origin of the pectineus?

superior pubic ramus

what is the insertion of the pectineus?

from lesser trochanter to linea aspera

what is the action of the pectineus?

hip adduction

what is the innervation of the pectineus?

femoral nerve

what is the origin of the adductor brevis?

inferior pubic ramus

what is the insertion of the adductor brevis?

distal to lesser trochanter to linea aspera

what is the action of the adductor brevis?

hip adduction

what is the innervation of the adductor brevis?

obturator nerve

what is the origin of the adductor longus?

anterior body of the pubis

what is the insertion of the adductor longus?

mid linea aspera

what is the action of the adductor longus

hip adduction

what is the innervation of the adductor longus

obturator nerve

what is the origin of the gracilis?

body of the pubis

what is the insertion of the gracilis?

just below the medial tibial condyle

what is the action of the cracilis?

hip adduction and knee flexion

what is the innervation of the gracilis

obturator nerve

what is the origin of the adductor magnus?

ishial tuberosity and inferior pubic ramus

what is the insertion of the adductor magnus

linea aspera to medial femoral epicondyle

what is the action of the adductor magnus

hip adduction

what is the innervation of the adductor magnus

obturator nerve

what is the origin of the vastus intermedius?

anterior femur

what is the insertion for the vastus intermedius?

tibial tubercle via patellar tendon

what is the action of the vastus intermedius?

knee extension

what is the innervation of the vastus intermedius?

femoral nerve

what is the origin of the vastus lateralis?

lateral femur

what is the insertion of the vastus lateralis?

tibial tubercle via patellar tendon

what is the action of the vastus lateralis?

knee extension

what is the innervation of the vastus lateralis?

femoral nerve

what is the origin of the vastus medialis?

anteriomedial femur?

what is the insertion of the vastus medialis?

tibial tubercle via patellar tendon

what is the action of the vastus medialis?

knee extension

what is the innervation of the vastus medialis?

femoral nerve

what is the origin of the popliteus?

posterior lateral condyle of femur?

what is the insertion of the popliteus?

proximal posterior tibia

what is the action of the popliteus?

medial rotation of the tibia

what is the innervation of the popliteus

tibial nerve

what is the origin of the gastrocnemius

medial and lateral femoral condyles

what is the insertion of the gastrocnemius

posterior calcaneus

what is the action of the gastrocnemius

knee flexion, ankle plantarflexion

what is the innervation of the gastrocnemius

tibial nerve

what is the origin of the soleus

posterior tibia and fibula

what is the insertion of the soleus

posterior calcaneus

what is the action of the soleus

ankle plantarflexion

what is the innervation of the soleus

tibial nerve

what is the origin of the tibialis posterior?

posterior interosseus membrane

what is the insertion of the tibalis posterior?

around medial malleolus to plantar surface of tarsals and metatarsals

what is the innervation of the tibialis posterior?

tibial nerve

what is the origin of the flexor digitorum longus

posterior tibia

what is the insertion of the flexor digitorum longus

around medial malleolus to distal phalanges of toes 2-5

what is the action of the flexor digitorum longus

ankle plantarflexion inversion and toe flexion

what is the innervation of the flexor digitorum longus

tibial nerve

what is the origin of flexor hallucis longus

posterior fibula

what is the insertion of the flexor hallucis longus

around medial malleolus to base of distal phalanx of great toe

what is the action of flexor hallucis longus

great toe flexion ankle plantarflexion and inversion

what is the innervation of the flexor hallucis longus

tibial nerve

what is the origin of the peroneus longus

head of and upper fibula

what is the insertion of the peroneus longus

around lateral malleolus to plantar surface of 1st cuneiform and 1st metatarsal

what is the action of the peroneus longus

ankle eversion

what is the innervation of the peroneus longus

superficial peroneal nerve

what is the origin of the peroneus brevis

lower lateral fibula

what is the insertion of the peroneus brevis

5th metatarsal

what is the action of the peroneus brevis

ankle eversion w

what is the innervation of the peroneus brevis

superficial peroneal nerve

what is the origin of the tibialis anterior

upper lateral tibia

what is the insertion of the tibialis anterior

medial cuneiform and 1st metatarsal

what is the action of the tibialis anterior

dorsiflexion and inversion

what is the innervation of the tibialis anterior

deep peroneal nerve

what is the origin of the extensor digitorum longus

upper lateral tibia and anterior fibula