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By: Mike Bazarnicki
Calf Muscles
 Plantaris
 Soleus
 Gastrocnemius
Plantaris
 Origin: Distal part of the lateral
supracondylar line of femur and adjacent
part of popliteal surface.
 Insertion: Posterior calcaneous
 Nerve: Tibial
 Function: Ankle plantar flexion
http://www.rad.washington.edu/academics/a
cademic-sections/msk/muscle-atlas/lowerbody/plantaris/atlasImage_large
Soleus
 Origin: Posterior head of fibula, the
middle third of the tibia
 Insertion: Combines with gastroc
tendon to insert on the posterior
calcaneous
 Nerve: Tibial
 Function: Ankle plantar flexion
http://www.thansworld.com/exercise/images/section8/calves.jpg
Gastrocnemius
 Origin: Posterior surface of the
medial and lateral femoral condyles
 Insertion: Posteromedial part of the
calcaneal tuberosity
 Nerve: Tibial
 Function: Ankle plantar flexion and
knee flexion
http://www.thansworld.com/exercise/images/section8/calves.jpg
Thigh Muscles
 Rectus Femoris
 Hamstrings
 Vastus Lateralis
 Vastus Medialis
 Vastus Intermedius
 Semitendinosus
 Semimembranosus
 Biceps Femoris
 Quadriceps
Rectus Femoris
 Origin: Anterior inferior ilac spine
 Insertion: Tibial tuberosity
 Nerve: Femoral
 Function: Knee extension and hip
flexion
http://36.media.tumblr.com/tumblr_lvpphg2N301r3nl11o1_250.jpg
Vastus Lateralis
 Origin: Proximal intertrochanteric
line, lateral lip of gluteal tuberosity,
and the anterior and inferior border
of the greater trochanter
 Insertion: Tibial tuberosity
 Nerve: Femoral
 Function: Knee Extension
http://36.media.tumblr.com/tumblr_lvpphg2N301r3nl11o1_250.jpg
Vastus Medialis
 Origin: Medial lip of
linea aspera
 Insertion: Tibial
tuberoisty
 Nerve: Femoral
 Function: Knee
extension
http://36.media.tumblr.com/tumblr_lvpphg2N301r3nl11o1_250.jpg
Vastus Intermedius
 Origin: Upper two thirds of femoral
shaft
 Insertion: Tibial tuberosity
 Nerve: Femoral
 Function: Knee Extension
http://www.therapycouch.com/Images/MT.AP.Muscles.Vastus%20lateralis.jpg
Semitendinosus
 Origin: Ishial Tuberosity
 Insertion: Proximal medial surface
of the tibia
 Nerve: Sciatic
 Function: Knee flexion, internal
rotation of the tibia, and assists with
hip extension
https://s3.amazonaws.com/classconnection/989/flashcards/3158989/jpg/biceps
_femoris__semitendinosus__semimembranosus-14935144CB51E121D4F.jpg
Semimembranosus
 Orign: Ishial Tuberosity
 Insertion: Posteromedial aspect of
the medial tibial condyle
 Nerve: Sciatic
 Function: Knee flexion, internal
rotation of the tibia at the knee, and
assists with hip extension
http://depts.washington.edu/msatlas/images/219.jpg
Biceps Femoris
 Origin: Ishial tuberosity and the
lower half of linea aspera’s lip
 Insertion: Lateral aspect of the
fibular head, and the lateral tibial
condyle
 Nerve: Sciatic
 Function: Knee flexion and external
rotation and hip extension
http://depts.washington.edu/msatlas/images/218.jpg
Hip Muscles
 Sartorius
 Tensor Fascia Lata
 Psoas Major
 Iliacus
 Gluteus Medius
 Gluteus Minimus
 Gluteus Maximus
Sartorius
 Origin: ASIS
 Insertion: Proximal anteromedial
aspect of the tibal condyle
 Nerve: Femoral
 Function: Hip flexion, abduction,
external rotation, and knee flexion
and medial rotation
http://www.musclesused.com/wp-content/uploads/2012/08/sartoriusmuscle.jpg
Tensor Fascia Lata
 Origin: Iliac crest just posterior to
the ASIS and the outer surface of the
ASIS
 Insertion: IT band and into the knee
 Nerve: Superior gluteal
 Function: Hip flexion, abduction
and internal rotation and assists
with kne flexion
http://www.rad.washington.edu/academics/academic-sections/msk/muscleatlas/lower-body/tensor-fascia-lata/atlasImage
Psoas Major
 Origin: Transverse
processes T12-L5
 Insertion: Lesser
trochanter of the femur
 Nerve: Lumbar plexus of
L1-L4
 Function: Hip flexion
and external rotation
http://corewalking.com/wp-content/uploads/2013/05/Psoas-Major-Muscle1285x300.png
Iliacus
 Origin: Superior two thirds of the
iliac fossa and the internal lip of the
iliac crest
 Insertion: Lesser trochanter
 Nerve Femoral
 Function: Hip flexion, external
rotation, and may assist with
adduction
http://img.tfd.com/MosbyMD/thumb/iliacus.jpg
Gluteus Medius
 Origin: External surface of the
ilium.
 Insertion: Greater trochanter
 Nerve: Superior gluteal
 Function: Hip abduction, internal
rotation, external rotation, flexion,
and extension
http://www.thansworld.com/ONLINEanatomy_1/images/section5/oi_gluteus_
medius.jpg
Gluteus Minimus
 Origin: External surface
of ilium
 Insertion: Greater
trochanter
 Nerve: Superior Gluteal
 Function: Hip
abduction, internal
rotation, and flexion
http://depts.washington.edu/msatlas/images/214.jpg
Gluteus Maximus
 Origin: Posterior gluteal
line of ilium
 Insertion: IT band and
gluteal tuberosity
 Nerve: Inferior Gluteal
 Function: Hip extension,
external rotation,
abduction, and
adduction
http://depts.washington.edu/msatlas/images/213.jpg