Adductor pollicis is a triangular intrinsic muscle of the hand. Although it is found in the thenar region of the hand, the adductor pollicis is the sole muscle of the adductor compartment of the hand, and does not form part of the thenar muscle group, which includes the abductor pollicis, flexor pollicis brevis, and opponens pollicis . In human anatomy, the adductor pollicis muscle is a muscle in the hand that functions to adduct the thumb. It has two heads: transverse and oblique. It is a fleshy, flat, triangular, and fan-shaped muscle deep in the thenar compartment beneath the long flexor tendons and the lumbrical muscles at the center of the palm.
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Adductor pollicis muscle lies deep to thenar muscles. It has two heads, oblique head and the transverse head. [1] Origin Oblique head originates from bases of 2nd-3rd metacarpals Transverse head originates from the shaft of 3rd metacarpal [1] Insertion The base of proximal phalanx of thumb on its medial aspect [1] Nerve Deep branch of ulnar nerve. The adductor pollicis muscle is an intrinsic muscle of the hand which lies in the deepest muscular plane of the palm, within the adductor compartment. It is a unique muscle, in that it is triangular shaped with a 2-headed structure. Key Features & Anatomical Relations Actions & Testing References Quick Facts Origin: Palmar aspects of capitate bone, bases of second and third metacarpal bones, and body of third metacarpal bone. Insertion: Medial aspect of base of the proximal phalanx of thumb. Action: Adducts thumb at its carpometacarpal joint. Encyclopaedia A Adductor Pollicis Not yet rated based on ratings Original Author (s): Oliver Jones Last updated: October 17, 2022 Revisions: 5 The adductor pollicis is an intrinsic muscle of the hand. It is a triangular shape with two heads. The radial artery passes anteriorly through the space between the two heads to form the deep palmar arch.
Adductor Pollicis Muscle Origin & Function Human Anatomy Kenhub YouTube
Adductor Pollicis. Origin. Oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals; Transverse head: anterior surface of the body of 3rd metacarpal. Insertion. Medial side of base of proximal phalanx of thumb. Action. Draws 1st metacarpal laterally to oppose thumb toward center of palm and rotates it medially. The adductor pollicis is a large triangular muscle located in the hand. Together with other muscles, it is part of the fleshy mass in the first web space of the hand, between the thumb and index. This video covers the most important muscle facts on the anatomy of the adductor pollicis muscle, one of the four thenar muscles: origin, insertion, innervat. Adductor Pollicis. Origin: Oblique head: bases of 2nd and 3rd metacarpals, capitate, and adjacent carpals; Transverse head: anterior surface of body of 3rd metacarpal. Insertion: Medial side of base of proximal phalanx of thumb. Action: Draws 1st metacarpal laterally to oppose thumb toward center of palm and rotates it medially.
Adductor Pollicis Anatomy Origin, Insertion, Action, Innervation The Wellness Digest
The adductor pollicis muscle is a large triangular muscle anterior to the plane of the interossei that crosses the palm of the hand. It is deep to the thenar eminence, forming part of the short muscles of the thumb, and the intrinsic muscles of the hand. Summary origin: transverse head: 3 rd metacarpal Dr. Ebraheim's educational animated video describes the anatomy of the adductor pollicis muscle.The abductor pollicis muscle is a small muscle of the hand an.
The adductor pollicis muscle plays an important role in opposition movements of the thumb. Opposition is the combined movement of the thumb where the pad of the thumb is brought into contact with the pads of one or more of the other fingers. If there is impaired nerve function to the adductor pollicis muscle, the individual has difficulty. The adductor pollicis (Latin: musculus adductor pollicis) is a flat triangular-shaped muscle of the hand.Together with the abductor pollicis brevis, flexor pollicis brevis and opponens pollicis, it forms the thenar eminence.Therefore, the adductor pollicis is known as one of the four thenar muscles that lie on the lateral (radial) side of the palm.
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The electrically stimulated m. adductor pollicis is a well-established model to investigate in vivo human muscle function noninvasively (Lee and Herzog 2003; de Ruiter and de Haan 2003; Oskouei and Herzog 2005). However, there are limitations of this approach that need to be considered when evaluating the results of our study. The Adductor pollicis ( transversus) ( Adductor transversus pollicis) is the most deeply seated of this group of muscles. It is of a triangular form arising by a broad base from the lower two-thirds of the volar surface of the third metacarpal bone; the fibers converge, to be inserted with the medial part of the Flexor pollicis brevis and the.
