Obturator Externus

 This information has been displayed with the kind permission of SportsInjuryClinic and Get Body Smart who can be found at the links below:

Obturator Externus    Obturator Externus: Origin and Insertion             Obturator Externus

Origin:

Insertion:  

Actions: 

Innervation:

Daily uses:

 

Muscles

Other muscles of the Lower Limb

Gluteus Medius

Origin: Outer surface of ilium between the posterior and anterior gluteal lines.

Insertion: Lateral and superior surfaces of the greater trochanter of the femur.

Actions: Abducts thigh at hip; anterior fibres medially rotate thigh and posterior fibres laterally rotate thigh.

Innervation: Superior gluteal nerve (L5, S1)

Daily uses: Stabilising hip through stance phase

Gluteus Minimus

Origin: Outer(external) surface of ilium between the anterior and inferior gluteal lines.

Insertion: Anterior surface of the greater trochanter of the femur

Actions: Abducts thigh at hip. Anterior fibres medially rotate hip.

Innervation: Superior gluteal nerve (L5, S1)

Daily uses:

Bicep Femoris

Origin: Ischial tuberosity of os coxae

Insertion: Head of fibula and lateral condyle of tibia

Actions: Flexes leg at knee and laterally rotates lef at knee if the knee is flexed (Also extends thigh at hip) .

Innervation: Tibial part of sciatic nerve (S1-3)

Daily uses: Walking up stairs.


More Anatomy

Back to muscles

Dissections

Back to the Student Room

 

Share Button

Why not check out...

Close
Please support the site
By clicking any of these buttons you help our site to get better