Muscles of the Leg

Question 1

Iliopsoas OIA?

Answer 1

ORIGIN
iliac fossa, T12 and L1-L5

     INSERTION  lesser trochanter of the femur

     ACTION  hip flexion

Question 2

Adductor Longus OIA

Answer 2

Origin

Pubis Ischial Tuberosity

Instertion

Linea Aspera

Actions

Adduction flexio of the hip

Question 3

Adductor Magnus OIA

Answer 3

Origin

Pubis

Insertion

Femur

Action

Adduction flexion of the hip

Question 4

Rectus Femoris OIA

Answer 4

ORIGIN
anterior inferior iliac spine
acetabulum

INSERTION
patellar tendon

                                          ** ACTION**
                                     Knee extension
                                         Hip flexion

Question 5

Biceps Femoris OIA

Answer 5

ORIGIN
Ischial tuberosity,
linea aspera, femur

INSERTION
Head of the fibula

ACTION
flex, laterally rotate knee, extends hip

Question 6

Gluteus Maximus OIA

Answer 6

ORIGIN
Ilium, lumbar, sacrum

INSERTION
Gluteal tuberosity of femur

ACTION
External rotation, extension of hip

Question 7

Gastrocnemius OIA

Answer 7

ORIGIN
condyles of the femur

INSERTION
calcaneal tendon

ACTION
plantar flexes foot, flexes knee

Question 8

Tibialis Posterior OIA

Answer 8

ORIGIN
Tibia, Fibula

INSERTION
Navicular, medial cuneform

ACTION
inversion of the foot, plantar flexion

Question 9

Tibialis Anterior OIA

Answer 9

ORIGIN
Tibia

INSERTION
medial cuneiform, first metatarsal

ACTION
Dorsiflexion and Inversion

Question 10

Flexor Digitorum Longus OIA

Answer 10

ORIGIN
Tibia

INSERTION
Plantar surface
base of the distal phalanges

ACTION
Flex digits

Question 11

Extensor Digitorum Longus OIA

Answer 11

ORIGIN
Tibia, fibula

INSERTION
Dorsal surface, middle
and distal phalanges of
lateral four digits

ACTION
Extend digits2-5

Question 12

Fibularis (Peroneus) Longus OIA

Answer 12

ORIGIN
fibula

INSERTION
first metatarsal
medial cuneiform

ACTION
Plantar flexion, eversion