2023年10月30日 · Palmar interossei are strong adductors of the fingers, but also greatly contribute to flexion and extension of the 2nd, 4th and 5th finger. This article will teach you all you need to know about the anatomy of the palmar interossei muscles, including origin, insertion, neurovascular supply and function.

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.

2024年1月27日 · The palmar interossei or volar interossei are 3 (sometimes 4) small intrinsic hand muscles between the metacarpals on the palmar side of the hand. The palmar interossei are much smaller than the dorsal interossei.

Origin: Metacarpals Insertion: Proximal phalange Nerve: Deep branch of ulnar nerve Action: Adduction Description: 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.

2023年1月31日 · There are three palmar interossei muscles (although some texts describe a fourth muscle at the base of the proximal phalanx of the thumb). Attachments: Each interossei originates from a medial or lateral surface of a metacarpal, and attaches into the extensor hood and proximal phalanx of same finger.

The palmar interossei muscles are one of two subgroups of the interossei muscles of the hand, the other being the dorsal interossei. These muscles mainly act to: - adduct the index, ring, and little fingers at their metacarpophalangeal joints;

The palmar interossei (Latin: musculi interossei palmares) are usually three short extrinsic muscles on the palmar side of the hand that are located in the spaces between the metacarpal bones. They extend between the metacarpal bones and proximal phalanges.