2023年10月30日 · Palmar interossei are short unipennate intrinsic muscles of the hand. They lie on the palmar surface of the hand and along with the dorsal interossei muscles occupy the spaces between the metacarpal bones.

In human anatomy, the palmar or volar interossei (interossei volares in older literature) are four muscles, one on the thumb that is occasionally missing, and three small, unipennate, central muscles in the hand that lie between the metacarpal bones and are attached to the index, ring, and little fingers. [1]

Palmar interossei muscles are strong Adductors of Fingers and assists in flexion of the metacarpophalangeal joints and extension of the interphalangeal joints. [1] The first palmar interossei also known as pollical palmar interosseous and it originates at the media palmar surface of the first metacarpal. It is often considered as rudimentary. [2]

2023年7月24日 · The palmar interossei are a group of paired intrinsic muscles of the hand located between the metacarpals. They consist of four, and sometimes three, palmar muscles that, adduct fingers. The palmar interossei also assist in flexion of the metacarpophalangeal joints and extension of the interphalangeal joints.

2023年7月24日 · The interossei muscles are intrinsic muscles of the hand located between the metacarpals. They consist of four (or three) palmar and four dorsal muscles that, respectively. These muscles are responsible for finger adduction and abduction.

2017年8月12日 · The palmar interossei are intrinsic hand muscles located between metacarpals bones in the palm of the hand. They may be the cause of hand pain.

2021年8月24日 · The palmar interossei muscles of the hand are unipennate and more volar in relation to the dorsal interossei. There are four muscles in this group, however, the 1 st is rudimentary and often considered part of either the adductor pollicis or the flexor pollicis brevis 1,3 .

2021年12月31日 · Palmar interossei (3 muscles) Origin. Palmar surfaces of 2nd, 4th and 5th metacarpals (3 unipennate muscles) Insertion. Extensor expansions of digits and bases of proximal phalanges of digits 2, 4 and 5. Action. Adduct digits toward axial line and assist lumbricals in flexing metacarpophalangeal joints and extending interphalangeal joints.

2023年4月7日 · What are Palmar interossei muscles? The palmar interossei are the hand’s short, unipennate intrinsic muscles. Together with the dorsal interossei muscles, they occupy the spaces between the metacarpal bones and are located on the palmar surface of the hand.

The Palmar Interossei, three in number, are smaller than the Interossei dorsales, and placed upon the volar surfaces of the metacarpal bones, rather than between them. Each arises from the entire length of the metacarpal bone of one finger, and is inserted into the side of the base of the first phalanx and aponeurotic expansion of the Extensor ...