Flexor Digitorum Superficialis

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Flexor Digitorum Superficialis mm    Flexor Digitorum Superficialis: Origin and Insertion    Flexor Digitorum Superficialis

Origin:  

Humeral Head: Medial epicondyle

Ulnar Head: Coronoid process

Radial Heal: Just inferior to radial tuberosity.

Insertion: Middle phalanx of digits 2-5

Actions: Flexes proximal and middle phalanges (2-5 digit) and flexes wrist.

Innervation: Median nerve (C7, T1)

Daily uses: Picking up a book.

Back to muscles

Other muscles …

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

 

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

Subscapularis

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

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