lab 9.

origin:

ala of sacrum

iliac fossa

iliac crest

insertion:

lesser trochanter of femur via iliopsoas tendon

action: prime mover for flexing thigh

origin: anterior superior iliac spine

insertion: winds around medial aspect of knee and inserts into medial aspect of proximal tibia

action: flexes, abducts, and laterally rotates thigh

origin:

dorsal ilium

coccyx

sacrum

insertion:

gluteal tuberosity of femur

iliotibial tract

action: major extensor of thigh

origin: between anterior and posterior gluteal lines on lateral surface of ilium

insertion: by short tendon into lateral aspect of greater trochanter of femur

action: abducts and medially rotates thigh

origin:

anterior aspect of iliac crest

anterior superior iliac spine

insertion: iliotibial tract

action: steadies the leg and trunk on thigh by tightening iliotibial tract

origin: anterior inferior iliac spine

superior margin of acetabulum

insertion: patella and tibial tuberosity via patellar ligament

action: extends leg and flexes thigh at hip

origin:

greater trochanter

intertrochanteric line

linea aspera

insertion:

patella and tibial tuberosity via patellar ligament

action: extends leg and stabilizes knee

origin:

linea aspera

intertrochanteric and medial supracondylar lines

insertion:

patella and tibial tuberosity via patellar ligament

action: extends leg

origin: anterior and lateral surfaces of proximal femur shaft

insertion: patella and tibial tuberosity via patellar ligament

action: extends leg

origin:

distal femur (short head)

ischial tuberosity

linea aspera

lateral supracondylar line

insertion:

common tendon into head of fibula

common tendon into lateral condyle of tibia

action: extends thigh and flexes leg

origin: ischial tuberosity in common with long head of biceps femoris

insertion: medial aspect of upper tibial shaft

action: extends thigh and flexes leg

origin: ischial tuberosity

insertion: medial condyle of tibia

lateral condyle of femur

action: extends thigh and flexes leg

origin: pubis near pubic symphysis

insertion: linea aspera

action: adducts, flexes, and medially rotates thigh

origin: ischial and pubic rami

ischial tuberosity

insertion:

linea aspera

adductor tubercle of femur

action: anterior part adducts and medially rotates and flexes thigh

posterior part is a synergist of hamstrings in thigh extension

origin: inferior ramus and body of pubis

adjacent ischial ramus

insertion: medial surface of tibia just inferior to its medial condyle

action: adducts thigh, flexes and medially rotates leg

origin:

lateral condyle and upper 2/3 of tibial shaft

interosseous membrane

insertion:

by tendon into interior surface of medial cuneiform and first metatarsal bone

action: prime mover of dorsiflexion

origin:

lateral condyle of tibia

proximal 3/4 of fibula

interosseus membrane

insertion: middle and distal phalanges of second to fifth toes via extensor expansion

action: prime mover of toe extension

origin: by two heads from medial and lateral condyles of femur

insertion: posterior calcaneus via calcaneal tendon

action: plantar flexes foot

origin:

extensive origin from superior tibia

fibula

interosseus membrane

insertion:

posterior calcaneus via calcaneal tendon

action: plantar flexes foot

origin: extensive origin on the posterior tibia

insertion: tendon runs behind the medial malleolus and inserts into distal phalanges of second to fifth toes

action: plantar flexes and inverts foot, flexes toes

origin: head and upper portion of lateral fibula

insertion: by long tendon that curves under foot to first metatarsal and medial cuneiform

action: plantar flexes and everts foot

origin: distal fibula shaft

insertion: by tendon running behind lateral malleolus to insert on proximal end of fifth metatarsal

action: plantar flexes and everts foot