Download - muscles of lower limb
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MYOLOGY
FRONT OF THIGH
PRESENTED BYP.MANIKANDAN
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MUSCLES OF FRONT OF THIGH
SARTORIUS
QUADRICEPS FEMORIS
ARTICULARIS GENU
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SARTORIUS
Runs down to the length ofThigh in the anterior compartment LONGEST & THIN Muscle
Tailor`s Muscle
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ORIGIN INSERTION
Antero Superior iliac spine
Upper half of the notch below the antero superior iliac spine
Upper part of medial surface of shaft of Tibia in front of insertion of the Gracilis and Semitendinosus
SARTORIUS
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SARTORIUS
NERVE SUPPLY BLOOD SUPPLY
FEMORAL NERVE
NERVE ROOT
L2
L3
FEMORAL ARTERY
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Flexion
abduction
lateral rotation of the hip
flexion of the knee
ACTION OF SARTORIUS MUSCLE
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It is comprises of FOUR Muscles
1. Rectus Femoris
2. Vastus lateralis
3. Vastus medialis
4. Vastus Intermedius
Too useful in effective exercise like SQUAT &
LEG PRESS
QUADRICEPS FEMORIS
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RECTUS FEMORIS
ORIGIN INSERTION
Arises by two head
Straight head
arises from upper part of the anterior inferior iliac spine
Reflected head
arises from groove above the brim of acetabulum, fibrous capsule of hip joint
base of patella and through common tendon of quadriceps femoris and Ligamentum patellae to tuberosity of tibia
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NERVE SUPPLY
FEMORAL NERVE
NERVE ROOT
L2 L3 L4
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ACTION OF RECTUS FEMORIS1.Extensor of knee joint
2.flexes the hip joint
3.flexes the pelvis on head of femur when thigh is fixed because this muscle can flex the hip while extending the
knee. It is called ``footballer`s muscle``
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VASTUS LATERALIS
ORIGIN INSERTION
Upper part of inter- trochanteric line of femur
Anterior and inferior borders of the greater trochanter
Lateral lip of gluteal tuberosity
Upper half of lateral lip of linea aspera
Lateral and upper borders of patella through common tendon of quadriceps femoris through ligamentum patellae to the tuberosity of tibia
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VASTUS LATERALIS
NERVE SUPPLY
FEMORAL NERVE
NERVE ROOT
L2
L3
L4
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Action of VASTUS LATERALIS
Extensors of the knee joint
Provides stability to the knee joint
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VASTUS MEDIALIS
ORIGIN INSERTION
Lower part of inter-trochantric line of femur
Spiral line of femur Medial line of linea
aspera Upper two thirds of
medial supra condylar line
Medial and upper borders of patella and through common tendons of quadriceps femoris and through ligamentum patellae to the tuberosity of tibia
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FEMORAL NERVE
Nerve Root• L2• L3• L4
NERVE SUPPLY
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1.Extensor of the knee joint
2.During terminal extension at knee, it prevent lateral displacement of patella by retaining it in its groove on patellar surface of femur
3.Provides stability to the
knee joint
ACTION OF VASUS MEDIALIS
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VASTUS INTERMEDIUS
ORIGIN INSERTION
Upper two thirds of anterior and lateral surface of shaft femur
Lower half of linea aspera
Lateral inter muscular septum
Lateral borders of patella through common tendon of quadriceps femoris and ligamentum patellae to the tuberosity of tibia
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FEMORAL NERVE
NERVE ROOT
L2L3L4
NERVE SUPPLY
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a small skeletal muscle
located anteriorly on
the thigh just above the knee.
It is otherwise called as
subcrureus
ARTICULARIS GENU
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ARTICULARIS GENU
ORIGIN INSERTION
Anterior surface of lower part of shaft of femur
Upper part of synovial membrane of knee joint
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ARTICULARIS GENU
NERVE SUPPLY BLOOD SUPPLY
FEMORAL NERVE Through the branch of vastus intermedius
NERVE ROOT
L2
L3
L4
LATERAL FEMORAL CIRCUMFLEX ARTERY.
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Action of ARTICLARIS GENU
During the extension of knee
joint it pulls the synovial membrane (supra
patellar bursa) upwards thus preventing
damage toknee joint
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ANY QUERIES
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THANK YOU