How can you distinguish between ECRL and ECRB?
The ECRL arises from the distal third of the lateral supracondylar ridge of the humerus and the adjacent portion of the lateral intermuscular septum, while the ECRB arises from the front of the lateral epicondyle of the humerus and the fascia covering the common extensor origin.
What is the ECRB muscle?
Extensor carpis radialis brevis (ECRB) muscle is a muscle of the superficial layer of the posterior compartment of the forearm. It passes through the 2nd extensor compartment of the wrist. Extensor carpi radialis brevis muscle is one of the three muscles forming the mobile wad of Henry.
What is ECRL tendon?
One of the three muscles of the radial forearm group, it initially lies beside the brachioradialis, but becomes mostly tendon early on. It is inserted into the dorsal surface of the base of the second metacarpal bone, on its radial side.
Where does the ECRL attach?
The ECRL is a particularly long muscle. It’s attached at the base of the humerus on one end and the second metacarpal bone on the other end. Along with the ECRB, the ECRL is in a family of muscles called radial wrist extensors. Radial wrist extensors help with movement in your elbow, forearm, wrist, and hands.
What does the Ecrb do?
In human anatomy, extensor carpi radialis brevis is a muscle in the forearm that acts to extend and abduct the wrist. It is shorter and thicker than its namesake extensor carpi radialis longus which can be found above the proximal end of the extensor carpi radialis brevis.
Why is it called mobile wad of Henry?
The mobile wad of Henry is a surgical term used to describe the radial muscles of the posterior compartment of the forearm that flex the elbow. The group of muscles is relatively mobile as a unit and can be retracted in surgery. brachioradialis muscle. extensor carpi radialis brevis muscle.
What is the origin of the ECRB?
The ECRB took origin from the lateral epicondyle of the humerus, radial collateral ligament of the elbow joint and from the adjacent intermuscular septum.
What does ECRB stand for in medical terms?
The tendons of extensor carpi radialis longus, extensor carpi radialis brevis (ECRB), extensor digitorum communis and the extensor carpi ulnaris make up the common extensor origin of the elbow.
What does the ECRB do?
How do you palpate ECRL?
Station: Palpation of Tendons of ECRL, have person extend their thumb; you will feel a tendon traveling diagonally from the thumb, directly under your finger. This is EPL.
What is the pronator quadratus?
Pronator quadratus is a square-shaped muscle on the distal forearm that acts to pronate (turn so the palm faces downwards) the hand.
How to remove ECRB and ECRL in Indiana?
Indiana Hand Protocol Surgical Procedure Following an incision over the lateral epicondyle, the pathologic tissue along the muscle/tendon origin of the ECRB and/or ECRL is excised. Post-op Rehab 48 hours- Bulky and compressive dressing is removed and a light compressive dressing is applied
How are ECRB and ECRL measured in cadavers?
The location of ECRB and ECRL was measured on 10 cadaver specimens, 5 right arms and 5 left arms. The distance from the muscle origin to (1) insertion, (2) largest portion of the muscle belly, (3) most proximal fibres and (4) most distal fibres were measured and expressed relative to forearm length.
How does the extensor carpi radialis longus ( ECRL ) work?
Extensor Carpi Radialis Longus (ECRL) Instruct the patient “Make a fist and strongly bring your wrist back” and palpate over the tendons. Insertion: base of 2nd metacarpal. Action: radial deviation of wrist and some wrist extension too.
Is the ECRL supplied by the radial nerve?
The ECRL is supplied by the radial nerve and the ECRB by its deep branch. The remaining extrinsic hand extensors are supplied by the posterior interosseus nerve, another branch of the radial nerve.