How Do You Spell MUSCULUS FLEXOR CARPI ULNARIS?

1. The musculus flexor carpi ulnaris, commonly referred to as the flexor carpi ulnaris (FCU), is a skeletal muscle located in the forearm. It is described as one of the deeper muscles in the anterior compartment of the forearm. The term "musculus" denotes a muscle in Latin, while "flexor" signifies its action of flexing or bending a joint. "Carpi" refers to the carpus, which is the wrist joint, and "ulnaris" indicates its relationship to the ulna bone in the forearm.

   The flexor carpi ulnaris originates from two distinct points – the medial epicondyle of the humerus (the bony prominence on the inner side of the elbow) and the olecranon process of the ulna (the bony prominence at the back of the elbow). From these origins, the muscle extends downward along the ulnar side of the forearm, attaching to the pisiform bone and the hamate bone in the wrist.

   The primary role of the flexor carpi ulnaris is to flex and adduct the wrist joint. This means that it aids in bending the hand towards the palmar surface (flexion) and moving it towards the body's midline (adduction). Additionally, it contributes to the stabilization of the wrist during gripping activities and assists in motions involving ulnar deviation (sideways movement towards the little finger side). It also contributes to the control of wrist movements during various sports or occupational activities that require precise hand and wrist functions.

   Overall, the musculus flexor carpi ulnaris plays an integral role in the intricate movements of the wrist joint and enables a range of activities that involve wrist flexion, adduction, and ulnar deviation.

2. M. ulnaris internus; orgin, humeral head (caput humerale) from internal condyle of humerus, ulnar head (caput ulnare) from olecranon process and upper three-fifths of posterior border of ulna; insertion, pisiform bone; nerve supply, ulnar; action, flexes and adducts wrist.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

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