ulnáris
The ulnaris muscle, also known as the ulnar muscle, is a major forearm muscle located on the medial side of the forearm. It is one of the two muscles that make up the flexor digitorum profundus, the other being the flexor pollicis longus. The ulnaris muscle originates from the medial epicondyle of the humerus and the olecranon process of the ulna. It inserts into the fifth metacarpal bone and the base of the proximal phalanx of the little finger.
The primary action of the ulnaris muscle is to flex the hand at the wrist and to
The ulnaris muscle is often involved in injuries and conditions such as ulnar nerve entrapment, known as
In summary, the ulnaris muscle is a crucial muscle in the forearm that plays a significant role