Dorsal interossei of hand: Anatomy and function - Kenhub
2023年11月3日 · Dorsal interossei muscles of hand (Musculi interossei dorsales manus) The dorsal interossei muscles are short bipennate intrinsic muscles of the hand. They are found on the dorsal aspect of the hand occupying the space between the metacarpal bones, along with the palmar interossei muscles.
Dorsal interossei of the hand - Wikipedia
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 finger) and assist in flexion at the metacarpophalangeal joints and extension at the interphalangeal joints of the index, middle and ring fingers.
Dorsal Interossei of the Hand - Physiopedia
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 ends of adjacent metacarpals to the proximal phalanx and …
Anatomy, Shoulder and Upper Limb, Hand Dorsal Interossei Muscle
2023年7月17日 · The dorsal interosseous muscles are a group of paired intrinsic muscles of the hand located between the metacarpals. They consist of four dorsal muscles that abduct the fingers. The dorsal interossei additionally assist in flexion of the metacarpophalangeal joints and extension of the interphalangeal joints.
Dorsal Interossei Muscles of Hand (Left) | Complete Anatomy
The dorsal interossei muscles are one of two subgroups of the interossei muscles of the hand, the other being the palmar interossei. These muscles mainly act to: - abduct the index, middle, and ring fingers at their metacarpophalangeal joints;
Dorsal Interossei of Hand: Origin, Insertion, Innervation, Diagram
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 the fingers. The muscles are referred to as the 1st to 4th dorsal interosseous from the …
The Muscles of the Hand - Thenar - Hypothenar
2024年9月27日 · Dorsal Interossei. The most superficial of all dorsal muscles, these can be palpated on the dorsum of the hand. There are four dorsal interossei muscles. Attachments: Each interossei originates from the lateral and medial surfaces of the metacarpals. They attach into the extensor hood and proximal phalanx of each finger.
First Dorsal Interosseous Muscle of Hand | Complete Anatomy
The first dorsal interosseous muscle of hand is found in the interosseous compartment of the hand. It is a short, bipennate skeletal muscle. It is located: - posterior to the adductor pollicis muscle and first lumbrical muscle of hand; - medial to the first metacarpal bone;
Dorsal interossei muscles of hand - e-Anatomy - IMAIOS
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 adjacent sides of the metacarpal bones, but more extensively from the metacarpal bone of the finger into which the muscle is inserted.
Dorsal Interossei - Actions - Innervation - TeachMeAnatomy
2023年1月31日 · The dorsal interossei are intrinsic muscles of the hand. They are located superficially on the dorsum of the hand, and can be palpated between the metacarpal heads.