Insertion. From its origin point, the muscle belly courses dorsally and laterally to insert onto the anterolateral surface of the first metacarpal shaft. The opponens pollicis lies beneath the abductor pollicis brevis and lateral to the flexor pollicis brevis. The opponens pollicis originates from the flexor retinaculum of the hand and the tubercle of the trapezium. It is one of the three thenar muscles, lying deep to the abductor pollicis brevis and lateral to the flexor pollicis brevis. Attachment of … It is supplied by the median nerve (C8, T1) Artery. Origin and insertion Opponens pollicis muscle originates from the flexor retinaculum and tubercle of the trapezium bone. Der Musculus opponens pollicis ist ein kurzer, dreieckiger Muskel, der zur Thenarmuskulatur der Hand gehört Er liegt unter dem Musculus abductor pollicis brevis. 2 Verlauf 2.1 Ursprung Der Muskel entspringt am Os trapezium sowie an den Bandstrukturen der palmaren Seite der … The opponens pollicis (or opponens pollicis muscle, latin: musculus opponens pollicis) is one of the four thenar muscles lying on the radial side of the palm. Opponens Pollicis : Origin, Insertion, Action & Nerve Supply The opponens pollicis is a small, triangular muscle in the hand, which functions to oppose the thumb. It passes downward and laterally, and is inserted into the whole length of the metacarpal bone of the thumb on its radial side. Originates from the flexor retinaculum, tubercles of scaphoid and trapezium, abductor pollicis longus tendon. Radial side of the base of proximal phalanx of thumb Nervepalmar. Opponens pollicis is a muscle of thenar eminence, it is triangular in shape and lies deep to flexor pollicis brevis and abductor pollicis brevis Origin.

opponens pollicis insertion

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