Bio 290 Exam 3 actions innervations insertions

Psoas major origin

bodies and transverse processes of lumbar vertebrae

Psoas major insertion

lesser trochanter

Psoas major action

flex thigh

Psoas major innervation

femoral n.

Iliacus origin

iliac fossa

Iliacus insertion

lesser trochanter

Iliacus action

flex thigh

Iliacus innervation

femoral n

Rectus femoris origin

anterior inferior iliac spine

Rectus femoris insertion

tibial tuberosity via patellar ligament/tendon

Rectus femoris action

extend leg and flex thigh

Rectus femoris innervation

femoral n

Vastus Lateralis origin

linea aspera and greater trochanter

Vastus Lateralis insertion

tibial tuberosity vis patellar ligament/tendon

Vastus Lateralis action

extend leg

Vastus Lateralis innervation

femoral n

Vastus medialis origin

linea aspera

Vastus medialis insertion

tibial tuberosity via patellar ligament/tendon

Vastus medialis action

extend leg

Vastus medialis innervation

femoral n

Vastus intermedius origin

anterior femur

Vastus intermedius insertion

tibial tuberosity via patellar ligament/tendon

Vastus intermedius action

extend leg

Vastus intermedius innervation

femoral n

Sartorius origin

anterior superior iliac spine

Sartorius insertion

medial, proximal tibia

Sartorius action

flex leg

flex thigh

laterally rotate thigh

Sartorius innervation

femoral n

Gluteus maximus origin

posterior ilium and sacrum and sacrotuberous ligament

Gluteus maximus insertion

gluteal tuberosity of femur, iliotibial tract

Gluteus maximus action

extends thigh

abducts thigh

laterally rotate thigh

Gluteus maximus innervation

inferior gluteal n

Tensor Fasciae latae origin

iliac crest

anterior superior iliac spine

Tensor Fasciae latae insertion

iliotibial tract

Tensor Fasciae latae action

abducts thigh

medially rotates thigh

flexes thigh

Tensor Fasciae latae innervation

superior gluteal n

Gluteus medius origin

lateral ilium

Gluteus medius insertion

greater trochanter

Gluteus medius action

aBducts thigh

medially rotates thigh

Gluteus medius innervation

superior gluteal n

Gluteus minimus origin

lateral ilium inferior to medius

Gluteus medius insertion

greater trochanter

Gluteus medius action

abducts thigh

medially rotates thigh

Gluteus medius innervation

superior gluteal n

Piriformis origin

anterior surface of sacrum

Piriformis insertion

greater trochanter

Piriformis action

laterally rotate thigh

Piriformis innervation

S1-S2 ventral rami

Semitendinosus origin

ischial tuberosity

Semitendinosus insertion

medial proximal tibia

Semitendinosus action

extend thigh

flex leg

Semitendinosus innervation

tibial division of sciatic n

Semimembranosus origin

ischial tuberosity

Semimembranosus insertion

posterior medial condyle of tibia

Semimembranosus action

extend thigh

flex leg

Semimembranosus innervation

tibial division of sciatic n

Biceps femoris long head origin

ischial tuberosity

Biceps femoris long head insertion

head of fibula

Biceps femoris long head action

extend thigh

flex leg

Biceps femoris long head innervation

tibial division of sciatic n

Biceps femoris short head origin

linea aspera

Biceps femoris short head insertion

head of fibula

Biceps femoris short head action

flex leg

Biceps femoris short head innervation

common fibular division of sciatic n

Pectineus origin

superior pubic ramus

Pectineus insertion

posterior femur just distal to lesser trochanter

Pectineus action

adduct and flex thigh

Pectineus innervation

obturator n

adductor longus origin

body of pubis

adductor longus insertion

linea aspera (distal to adductor brevis)

adductor longus action

adduct and flex thigh

adductor longus innervation

obturator n

Adductor brevis origin

body of pubis and inferior pubic ramus

Adductor brevis insertion

linea aspera (proximal to adductor longus)

Adductor brevis action

adduct and flex thigh

Adductor brevis innervation

obturator n

Gracilis origin

body of pubis and inferior pubic ramus

Gracilis insertion

medial proximal tibia

Gracilis action

adduct thigh

flex thigh

flex leg

Gracilis innervation

obturator n

Adductor Magnus origin

inferior pubic ramus

ischial ramus

ischial tuberosity

Adductor Magnus insertion

linea aspera

adductor tubercle

Adductor Magnus action

adduct thigh

extend thigh

x

Adductor Magnus innervation

Obturator n (adductor)

Tibial n (hamstring part)

Gastrocnemius origin

Posterior medial and lateral epicondyles of femur

Gastrocnemius insertion

posterior calcaneus via achilles tendon

Gastrocnemius action

plantar flex foot

flex leg

Gastrocnemius innervation

tibial nerve

Plantaris origin

posterior femur proximal to lateral epicondyle

Plantaris insertion

posterior calcaneus via achilles tendon

Plantaris action

plantar flex foot

flex leg

Plantaris innervation

tibial n

Soleus origin

posterior tibia and fibula

Soleus insertion

posterior calcaneus via achilles tendon

Soleus action

plantar flex foot

Soleus innervation

tibial n

Flexor hallucis longus origin

posterior fibula

Flexor hallucis longus insertion

distal phalanx of hallux

Flexor hallucis longus action

flex hallux

invert foot

plantar flex foot

Flexor hallucis longus innervation

tibial n