Did you know...
that you can enter ratings for any question in the database?

Flexor Carpi Ulnaris

Last updated on Monday, April 27 2009 by blondarb

peer review status unavailable
rating unavailable

Muscle Name: flexor carpi ulnaris

AKA:  musculus flexor carpi ulnaris

Abbreviation:  FCR

Spinal Nerve Roots:
    C7
    C8
    T1

Brachial Plexus Trunks:
    lower trunk

Brachial Plexus Cords:
    medial cord

Named Nerves:
    ulnar nerve

Proximal Attachment:  medial epicondyle (common flexor tendon)

Distal Attachment:  pisiform

Action:  flexion of wrist

Needle Insertion:  In the supinated forearm, midway between the medial epicondyle and the medial aspect of the wrist.

Activation for EMG:  

Two methods of activation:

  • Flex the wrist with an ulnar deviation.
  • Abduct the fifth finger. (Have the patient spread their fingers apart)


Pitfalls:  If the needle is inserted too deeply the flexor digitorum profundus will be sampled.

Notes: