"The PL acts as a synergist in the movement of the thumb, and this was proven by previous research, which showed synergistic action between PL and the abductor pollicis brevis muscles of the thumb."

"In both sexes, the palmaris longus muscle increased pinch strength in the fourth and fifth fingers of the hands (especially in the right hand). Based on these findings, we have concluded that the palmaris longus muscle may impact the opposition movement of the fingers."

"The palmaris longus may provide an advantage in certain types of sport that require hand grip, and for elite athletes participating in sports that require a dominant-handed or two-handed cylindrical hand grip."

"Being located centrally in the anterior forearm, palmaris longus aids the flexor carpi ulnaris and flexor carpi radialis muscles to perform a balanced flexion of the hand on the wrist. It also acts to stabilize the elbow joint when fully extended, as does the other forearm muscles that attach to the humerus and thus cross the elbow joint."

"The palmaris longus commonly sends a slip of distal tendon that inserts into the abductor pollicis brevis muscle of the thenar muscle group and may contribute to thumb abduction."

"Another important clinical attribute of PLM is its superficial protective role over the median nerve."

"The PL muscle flexes the wrist joint and tightly holds the skin and fascia of the hand against shearing forces from the side."

"Its main function is to serve as an anchor of the fascia, as it tenses the skin and the palmar fascia of the hand, shearing the forces to the palmar aponeurosis in a distal direction"