Gellemus Inferior

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Gemellus Inferior

    Gemellus Inferior: Origin and InsertionGemellus Inferior

Origin:  Ischial tuberosity (below groove for obturator externus tendon)

Insertion: Medial surface of the greater trochanter.

Actions: Externally rotates, adduction and extension of the hip joint.

Innervation: Quadratus femoris (L4, 5, S1)

Daily uses: Walking


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Other muscles …


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


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


Origin: Anterior (costal) surface of the scapula

Insertion: Lesser tuberosity of the humerus

Actions: Internal rotation
, Adduction

Innervation: Upper and lower subscapular nerves

Daily uses: Tucking the back of your shirt into your trousers

More Anatomy

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Check out strengthening exercises for the rotator cuff



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