In human anatomy, the dorsal interossei (DI) are four muscles in the back of the hand that act to abduct (spread) the index, middle, and ring fingers away from the hand's midline (ray of middle …

2023年11月3日 · Dorsal interossei are bipennate (feather-like) muscles found in the dorsal compartment of the hand. The prefix bi- means that they arise by two heads which converge to …

2024年9月27日 · The interossei muscles are located between the metacarpal bones of the hand. They can be divided into two groups – dorsal and palmar. In addition to their actions of …

These muscles insert into the dorsal side of the hand – into the metacarpal bones or in the extensor expansion. Their actions include extending the wrist and the fingers at their …

In the hand, there are four dorsal Interossei which lie superficially, in between the metacarpals on the dorsum of the hand. Each muscle is bipennate in shape and extends from the proximal …

2023年11月13日 · Dorsal venous network of hand: predominant drainage route of the hand (also receiving palmar venous return via perforating veins). Gives rise to cephalic and basilic veins. …

2023年7月17日 · These small muscles, despite their limited range of motion and together with the interosseous palmar muscles, play key roles in the function of the hand: grip and pinch. Of all …

2024年3月30日 · The dorsal interossei (DI) are a group of 4 intrinsic hand muscles located between the 2nd to 5th metacarpals. These small muscles are involved in the movements of …

2021年8月24日 · The dorsal intrinsic muscles of the hand are bipennate and are the most dorsally situated of all intrinsic muscles of the hand. They are associated with abduction of the 2 nd, 3 …

The Interossei dorsales (Dorsal interossei) are four in number, and occupy the intervals between the metacarpal bones. They are bipenniform muscles, each arising by two heads from the …