Flexor Digitorum Superficialis - Muscle Physiology & Functional Anatomy

 

Flexor Digitorum Superficialis Muscle

Anatomy

 

Origin:

  • Humeral head: Common flexor origin of medial epicondyle of the humerus, medial ligament of elbow.

  • Ulnar head: Medial border of coronoid process & fibrous arch

  • Radial head:  Entire length of the anterior oblique line

Insertion

  • Tendons split to insert onto sides of middle phalanges of medial four fingers



Major Artery:

  • Ulnar artery

 

Neural Innervation:

  • Median nerve (C7-C8) (from medial & lateral cords)

 

Trigger Points: 

Trigger Points for the Flexor Digitorum Profundus and Superficialis

 

Physiology

 

Concentric Functions:

  • Flexes proximal interphalangeal joints

  • Secondarily flexes metacarpophalangeal joints & wrist

Eccentric Functions:


Isometric Function:


Related Muscles


Antagonist:


Exercises:

 

 


More Images of the Flexor Digitorum Superficialis Muscle

How to Palpate the Flexor Digitorum Superficialis


More Information about the Flexor Digitorum Superficialis Muscle

Although there is no debate that the flexor digitorum superficialis muscle is in the anterior compartment of the forearm It is sometimes considered to be the deepest part of the superficial layer of this compartment and sometimes considered to be a distinct, "intermediate layer" of the anterior compartment.

 

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