Thigh ANTERIOR COMPARTMENT POSTERIOR COMPARTMENT MEDIAL COMPARTMENT

Thigh

ANTERIOR

COMPARTMENT

POSTERIOR

COMPARTMENT

MEDIAL

COMPARTMENT

Posterior Compartment

Anterior Compartment Medial Compartment

Compartments of the Thigh

Thigh by deep fascia( fascia lata ) divided in

to three compartments and form anatomical

spaces (femoral triangle and adductor canal ).

Thigh

Post. Compartment

Muscles

Arterial Supply

Nerve Supply

Hamstring:1. Semitendinosus

2. Semimembranosus

3. Biceps femorisProfonda femoris:Branch of femoral artery

Sciatic nerve

Sciatic nerve is formed of (L4, L5, S1, S2, S3) branches of sacral plexus

Back

Muscles of the posterior compartment of thigh

Muscle Origin Insertion Innervation Function

Biceps femoris

Long head-inferomedial part of the upper area of the ischial tuberosity; short head-lateral lip of linea aspera

Head of fibula Sciatic nerve [L5 to S2]

Flexes leg at knee joint; extends and laterally rotates thigh at hip joint and laterally rotates leg at knee joint

Semitendinosus

Inferomedial part of the upper area of the ischial tuberosity

Medial surface of proximal tibia

Sciatic nerve [L5 to S2]

Flexes leg at knee joint and extends thigh at hip joint; medially rotates the thigh at the hip joint and leg at the knee joint

Semimembranosus

Superolateral impression on the ischial tuberosity

Groove and adjacent bone on medial and posterior surface of medial condyle of tibia

Sciatic nerve [L5,S1,S2]

Flexes leg at knee joint and extends thigh at hip joint; medially rotates thigh at the hip joint and leg at the knee joint

Posterior Compartment

Muscles

Back

Post. Compartment

Muscles

Arterial Supply

Nerve Supply

Hamstring:1. Semitendinosus

2. Semimembranosus

3. Biceps femoris

Profonda femoris

Femoral nerveBranch of femoral artery

Review

Sciatic nerve is formed of (L4, L5, S1, S2, S3) branches of sacral plexus

Posterior Compartment

Anterior Compartment Medial Compartment

Compartments of the Thigh

Ant. Compartment

Muscles

Arterial Supply

Nerve Supply

Femoral Artery

Femoral nerve

Femoral nerve is formed of (L2, L3, L4) greater branches of lumbar plexus

Femoral artery is continuation of the external iliac artery

Psoas Major

Iliacus

Sartorius

Quadriceps:1. Rectus femoris

2. Vastus medialis

3. Vastus lateralis

4. Vastus intermedius

Anterior Compartment

Muscles

Muscles of the anterior compartment of thigh

Muscle Origin Insertion Innervation Function

Psoas major Posterior abdominal wall (lumbar transverse processes, intervertebral discs, and adjacent bodies from T12 toL5

Lesser trochanter of femur

Anterior rami L1,L2,L3

Flexes the thigh at the hip joint

Iliacus Posterior abdominal wall (iliac fossa)

Lesser trochanter of femur

Femoral nerve [L2,L3]

Flexes the thigh at the hip joint

Sartorius Anterior superior iliac spine

Anterior surface of tibia just inferolateral to tibial tuberosity

Femoral nerve [L2,L3]

Flex, Abd, & Lat.rotation the thigh at the hip joint and flexes the leg at the knee joint

Quadriceps

Back

Anterior Compartment

Muscles

Back

Muscles of the anterior compartment of thigh (continue)

Muscle Origin Insertion Innervation Function

Rectus femoris

Straight head originates from the anterior inferior iliac spine; reflected head originates from the ilium just superior to the acetabulum

Quadriceps femoris tendon

Femoral nerve [L2,L3,L4]

Flexes the thigh at the hip joint and Extends the leg at the knee joint

Vastus medialis

Medial part of intertrochanteric line, Spiral line, medial lip of the linea aspera, medial supracondylar line of femur

Quadriceps femoris tendon and medial border of patella

Femoral nerve [L2,L3,L4]

Extends the leg at the knee joint

Vastus intermedius

Upper two-thirds of anterior and lateral surfaces of femur

Quadriceps femoris tendon and base of patella

Femoral nerve [L2,L3,L4]

Extends the leg at the knee joint

Vastus lateralis

Lateral part of intertrochanteric line, margin of greater trochanter, lateral margin of gluteal tuberosity, lateral lip of the linea aspera

Quadriceps femoris tendon and lateral margin of patella

Femoral nerve [L2,L3,L4]

Extends the leg at the knee joint

Back

Ant. Compartment

Muscles

Arterial Supply

Nerve Supply

Sartorius

Quadriceps

Femoral Artery

Femoral nerve

Review

Paralyses of Paralyses of QuadricepsQuadriceps

Posterior Compartment

Anterior Compartment Medial Compartment

Compartments of the Thigh

Med. CompartmentMed. Compartment

Muscles Muscles

Arterial Arterial

SupplySupply

Nerve SupplyNerve Supply

PectineusPectineus

Adductor Adductor longuslongus

Adductor Adductor brevisbrevis

Adductor Adductor magnusmagnus

GracilisGracilis

Obturator artery:Obturator artery:Branch of internal iliac Branch of internal iliac

arteryartery

Femoral arteryFemoral arteryObturaror nerve:Obturaror nerve:Branch of Lumbar plexusBranch of Lumbar plexus

BackBack

Medial Compartment

Muscles

Muscles of the medial compartment of thighMuscles of the medial compartment of thigh

MuscleMuscle OriginOrigin InsertionInsertion InnervationInnervation FunctionFunction

GracilisGracilis External surfaces of the External surfaces of the body of the pubis and body of the pubis and Ischiopubic ramiIschiopubic rami

Medial surface of Medial surface of proximal shaft of the proximal shaft of the tibiatibia

Obturator nerve Obturator nerve [L2,L3][L2,L3]

Adducts thigh at hip Adducts thigh at hip joint and flexes leg joint and flexes leg at knee jointat knee joint

PectineusPectineus Pectineal line and Pectineal line and Pectineal surface of Pectineal surface of superior ramussuperior ramus

Pectineal line in Pectineal line in posterior surface of posterior surface of proximal femurproximal femur

Femoral nerve Femoral nerve [L2,L3][L2,L3]

Adducts and flexes Adducts and flexes thigh at hip jointthigh at hip joint

Adductor Adductor longuslongus

External surface of body External surface of body of pubis (triangular of pubis (triangular depression inferior to depression inferior to pubic crest and lateral to pubic crest and lateral to pubic symphysis)pubic symphysis)

Linea aspera on Linea aspera on middle one-third of middle one-third of shaft of femurshaft of femur

Obturator nerve Obturator nerve [L2,L3,L4][L2,L3,L4]

Adducts and Adducts and medially rotates medially rotates thigh at hip jointthigh at hip joint

Adductor Adductor brevisbrevis

External surface of body External surface of body of pubis and inferior of pubis and inferior pubic ramuspubic ramus

Posterior surface of Posterior surface of proximal femur and proximal femur and upper one-third of upper one-third of linea asperalinea aspera

Obturator Obturator nerve[L2,L3]nerve[L2,L3]

Adducts thigh at hip Adducts thigh at hip jointjoint

Adductor Adductor magnusmagnus

Adductor part-Adductor part-Ischiopubic rami Ischiopubic rami Hamstring part-ischial Hamstring part-ischial tuberositytuberosity

Posterior surface of Posterior surface of proximal femur, linea proximal femur, linea aspera, medial aspera, medial supracondylar line supracondylar line Adductor TubercleAdductor Tubercle

Obturator nerve Obturator nerve [L2,L3,L4][L2,L3,L4]Sciatic nerve Sciatic nerve (tibial division) (tibial division) [L2,L3,L4][L2,L3,L4]

Adducts and Adducts and medially rotates medially rotates thigh at hip jointthigh at hip joint

BackBack

BackBack

Medial Compartment

arterial Supply

Obturator Nerve

Med. Med. CompartmentCompartment

Muscles Muscles

Arterial Arterial

SupplySupply

Nerve SupplyNerve Supply

PectineusPectineus

Adductor Adductor longuslongus

Adductor Adductor brevisbrevis

Adductor Adductor magnusmagnus

GracilisGracilis

Obturator Obturator artery:artery:

Branch of internal Branch of internal iliac arteryiliac artery

Femoral arteryFemoral artery

Obturaror Obturaror nerve:nerve:

Branch of Lumbar Branch of Lumbar plexusplexus

RevieRevieww