Muscles of the Anterior Compartment of Thigh Flashcards by Francois Ehlers

Q

Which muscles make up the iliopsoas muscle?

A

Psoas major

2. Iliacus

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Q

Name the muscles of the anterior compartment of the thigh?

A

Iliopsoas
Tensor fasciae latae
Sartorius
Quadriceps femoris

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Q

Main action of the psoas major?

A

Adducts thigh
Flexes thigh
Assists with med. rotation of thigh

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Q

Main action of the iliacus?

A

Flexes thigh at hip joint

- Stabilizes hip joint

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Q

Innervation of iliopsoas muscle?

A

Femoral nerve

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Q

Proximal attachment of the psoas major muscle?

A

Sides of T12-L5 vertebrae & IV discs

- Transverse processes of all lumbar vertebrae

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Q

Distal attachment of the psoas major?

A

Lesser trochanter of femur

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Q

Proximal attachment of the iliacus?

A

Iliac crest and fossa

- Ala of sacrum

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Q

Distal attachment of iliacus?

A

Lesser trochanter of femur

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Q

Main action of the tensor fascia latae?

A

Abducts & flexes thigh

- Med. rotates thigh

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Q

Innervation of tensor fascia latae?

A

Sup. gluteal n.

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Q

Proximal attachment of tensor fascia latae?

A

ASIS

- Ant. part of iliac crest

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Q

Distal attachment of tensor fascia latae?

A

Iliotibial tract (attached to lat. condyle of tibia)

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Q

Main action of the sartorius?

A

Flexes, abducts & lat. rotates thigh at hip joint

- Flexes leg at knee joint

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Q

Innervation of sartorius?

A

Femoral nerve

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Q

Proximal attachment of the sartorius?

A

ASIS

Q

Distal attachment of the sartorius?

A

Sup. part of med. surface of tibia

Q

Which muscles make up the quadriceps femoris?

A

Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius

Q

Main action of the quadriceps femoris?

A

Extends leg at knee
Steadies hip joint
Helps iliopsoas flex thigh

Q

Innervation of quadriceps femoris?

A

Femoral nerve

Q

Proximal attachment of the rectus femoris?

A

Ant. inf. iliac spine

- Ilium sup. to acetabulum

Q

Distal attachment of rectus femoris?

A

Base of patella

- Tibial tuberosity (via patellar ligament)

Q

Proximal attachment of vastus lateralis?

A

Greater trochanter

- Lat. lip of linea aspera

Q

Distal attachment of vastus lateralis?

A

Base of patella

- Tibial tuberosity (via patellar ligament)

Q

Proximal attachment of vastus medialis?

A

Intertrochanteric line

- Med. lip of linea aspera

Q

Distal attachment of vastus medialis?

A

Base of patella

- Tibial tuberosity (via patellar ligament)

Q

Proximal attachment of vastus intermedius?

A

Ant. surface of femur

- Lat. surface of femur

Q

Distal attachment of vastus intermedius?

A

Base of patella

- Tibial tuberosity (via patellar ligament)