Semi membranosus

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

SemimembranosusSemimembranosus: Origin and Insertion 

Semi membranosus

Origin: Ischial tuberosity of os coxae

Insertion: Posterior medial condyle of tibia

Actions: Knee flexion. Extends thigh at hip.

Innervation: Tibial portion of the sciatic nerve (L5, S1,S2)

Daily uses: Running

 

Back to muscles

Other muscles…

Infraspinatus

Origin: Posterior surface of the scapula (below the spine of the scapula)
.

Insertion: Greater tuberosity on the humerus
.

Actions: Shoulder abduction, 
External rotation.

Innervation: Suprascapular nerve
.

Daily uses: Brushing hair.

Teres Minor

Origin: Mid section of the lateral border of the scapula

Insertion: Greater tuberosity on the humerus

Actions:External rotation, 
Shoulder adduction

Innervation: Axillary nerve

Daily uses: Brushing hair

Supraspinatus

Origin: Supraspinous fossa

Insertion: Greater tuberosity of the humerus

Actions: Abduction 
Stabilisation of the humerus

Innervation: Suprascapular nerve

Daily uses: Holding shopping bags away from the body


More Anatomy

Back to muscles

Ligaments

Check out strengthening exercises for the rotator cuff

Share Button

Why not check out...

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