Functional Anatomy of the Lower Extremity

Degrees of Motion for Hip Flexion

125

Prime Mover of Hip Flexion

iliopsoas muscilotendinous unit

4 synergists of hip flexion

Pectineus, rectus femurs, sartorius, tensor fascia latae

2 Origins of Iliacus

Inner surface of Ilium, sacrum

Insertion of Iliacus

Lesser trochanter of femur

Origin of Psoas Major

Vertebral Bodies, Intervertebral Discs, and Transverse Processes of T12-L5

Insertion of Psoas Major

Lesser Trochanter

origin of Pectineus

pectineal line of pubic bone

insertion of pectineus

inferior to lesser trochanter of femur

origin of rectus femoris

Anterior inferior iliac spine

insertion of rectus femoris

tibial tuberosity

origin of sartorius

anterior superior iliac spine

insertion of sartorius

medial tibia at the pes anserinus

Origin of tensor fascia latae

anterior superior iliac spine

insertion of tensor fascia latae

lateral condyle of tibia via iliotibial tract

Degrees of motion for hip extension

15 degrees of hyperextension

4 Prime Movers of hip extension

Gluteus Maximus, biceps femoris, semitendinosus, semimembranosus

Synergist of hip extension

Adductor Magnus

3 origins of gluteus Maximus

posterior ilium, sacrum, coccyx

insertion of gluteus Maximus

gluteal tuberosity

Origin of long head of biceps femoris

ischial tuberosity

2 insertions of biceps femoris

lateral condyle of tibia and head of fibula

origin of semitendinosus

ischial tuberosity

insertion of semitendinosus

medial tibia at the pes anserinus

origin of semimembranosus

ischial tuberosity

insertion of semimembranosus

medial condyle of tibia

Origins adductor Magnus

anterior pubic ramus, ischial tuberosity

insertions adductor Magnus

linea aspera of femur, Adductor Tubercle

degrees of motion for hip abduction

45 degrees

2 primer movers of hip abduction

gluteus medius and gluteus minimus

4 synergists of hip abduction

Piriformis, rectus femoris, sartorius, tensor fascia latae

origin of gluteus medius

lateral surface of the ilium

insertion of the gluteus medius

superior part of the greater trochanter of femur

origin of the gluteus minimus

external surface of the ilium

insertion of the gluteus minimus

anterior and lateral aspect of the greater trochanter of the femur

insertion of the piriformis

greater trochanter of femur

2 origins of the piriformis

anterior surface of the sacrum and gluteal surface of ilium

degree of motion for hip adduction

30 degrees

Origin of adductor longus

Anterior and inferior aspect of pubis

insertion of adductor longus

linea aspera on posterior surface of femur

origin of adductor brevis

inferior body of pubis

insertion of adductor brevis

lineas aspera on posterior surface of femur

2 origins of Gracilis

inferior ischiopubic ramus and body of pubis

insertion of gracilis

medial tibia at the pes anserinus

Name of Muscle group formed by Iliacus and Psoas Major

Iliopsoas muscilotendinous unit

3 Prime Movers of Hip Adduction

Aductor Longus, Adductor Brevis, Adductor Magnus

2 Synergists of Hip Adduction

Gracilis and Pectineus

Joints of the Pelvis

sacrococcygeal, lumbosacral, pubic symphysis, and sacroiliac

joint of the hip

acetabilofemoral

Joints of the knee

tibiofemoral, patellofemoral, and tibiofibular

what degrees can you medially rotate the hip through

50 degrees

2 Prime Movers of Medial hip Rotation

Gluteus Medius and Gluteus Minimus

4 synergists of medial hip rotation

adductors, gracilis, semitendinosus, and semimembranosus

Degrees of motion for lateral hip rotation

50 degrees

Prime mover of lateral hip rotation

gluteus maximus

4 synergists of lateral hip rotation

obturator externus, obturator internus, Quadratus fermoirs, sartorius

Origin of Obturator Externus

Anterior surface of obturator foramen

insertion of the obturator externus

greater trochanter of femur

origin of the obturator internus

posterior surface of the obturator foramen

insertion of the obturator internus

greater trochanter of femur

Origin of the quadratus femoris

ischial tuberosity

insertion of quadratus femoris

greater trochanter

degrees of motion for knee flexion

145 degrees

3 prime movers for knee flexion

biceps femoris, semitendinosus, semimembranosus

2 synergists of knee flexion

gastrocnemius and popliteas

Origin of lateral head of gastrocnemius

lateral condyle of femur

origin of medial head of gastrocnemius

medial condyle of femur

insertion of gastrocnemius

calcaneus via the calcaneal tendon

4 Prime Movers of Knee Extension

Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Origin of Vastus Lateralis

It line and linea aspera

insertion of vastus lateralis

quadriceps tendon attached to the tibial tuberosity

Origin of the vastus medialis

linea aspera and trochanteric line

insertion of the vastus medialis

quadriceps tendon at the tibial tuberosity

Origin of the vastus intermedius

anterior lateral aspect of the femur

insertion of the vastus intermedius

quadriceps tendon at the tibial tuberosity

What are the joints of the ankle

talocrural and talocalcaneal

what two joints make up the talocrural joint

tibiofibular joint and tibiotalar joint

Prime Mover of Dorsiflexion

tibialis Anterior

Synergists of dorsiflexion

extensor digitorum longus, peroneus Tertius and extensor hallucis longus

Origin of the tibias anterior

upper lateral tibia and interosseous membrane

Insertion of the tibialis anterior

Medial cuneiform bone

Origin of the peroneus tertius

distal anterior aspect of the fibula and interosseous membrane

insertion of peroneus tertius

dorsal surface of the base of the 5th metatarsal

Origin of the extensor digitorum longus

lateral condyle of tibia and interosseous membrane

insertion of the extensor digitorum longus

distal and middle phalanges of digits 2-5

origin of extensor hallucis longus

Anterior distal aspect of fibula and interosseous membrane

insertion of extensor hallucis longus

base of the distal phalanx of big toe

degrees of Motion for knee extension

2 degrees

degrees of motion for dorsiflexion

20 degrees

degrees of motion for planarflexion

50 degrees

Prime mover of plantar flexion

gastrocnemius

3 synergists of plantar flexion

soleus, tibialis posterior, plantaris

Origins of soleus

medial boarder of tibia, head of fibula, interosseous membrane

Insertion of soleus

posterior surface of the calcaneus

Origin of tibialis posterior

posterior surface of the tibia and fibula and the interosseous membrane

insertions of the tibialis posterior

tuberosity of the navicular; intermediate, lateral, and medial cuneiform bones; cuboid bone; bases of metatarsals 2-4

origin of the plantaris

linea aspera

insertion of the plantaris

posterior calcaneus

Prime Mover of Truck Flexion

Rectus Abdominus

3 synergists of trunk flexion

external oblique, internal oblique, iliopsoas