Palmar interossei: Origin, insertion, action, innervation - Kenhub
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. Palmar interossei consist of four muscles that attach to the 1st, 2nd, 4th and 5th finger, of which the one on the 1st finger is sometimes ...
The Muscles of the Hand - Thenar - Hypothenar
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 abduction (dorsal interossei) and adduction (palmar interossei) of the fingers, the interossei also assist the lumbricals in flexion at the MCP joints and extension at the IP joints.
Palmar interossei muscles - Wikipedia
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 - Physiopedia
The palmar interossei or volar are three short, unipennate muscles on the palmar surface of the hand and along with the dorsal interossei muscles. These occupy the spaces between the metacarpal bones.These are attached to the index, ring, and little fingers. They are smaller than the dorsal interossei of the hand.
Anatomy, Shoulder and Upper Limb, Hand Palmar Interosseous Muscle
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.
Palmar Interossei - Attactments - Actions - TeachMeAnatomy
2023年1月31日 · The palmar interossei are intrinsic muscles of the hand. There are three palmar interossei muscles (although some texts describe a fourth muscle at the base of the proximal phalanx of the thumb).
Anatomy, Shoulder and Upper Limb, Hand Interossei Muscles
2023年7月24日 · The palmar interossei are unipennate muscles that originate from the metacarpals of the respective digit to which they are associated. These muscles adduct the first, second, fourth, and fifth digits about a long axis through the third digit.
Palmaris longus: Origin, insertion and function | Kenhub
2023年11月3日 · Palmaris longus is the most superficial muscle of the superficial forearm flexors, found deep to the forearm skin. It sits between the flexor carpi radialis and flexor carpi ulnaris muscles, superficial to the flexor digitorum superficialis muscle.
Palmar interossei - Anatomy - Orthobullets
2021年12月31日 · 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. Innervation.
Anatomy, Shoulder and Upper Limb, Hand Intrinsic Muscles
2023年7月17日 · The thenar muscle, or thenar eminence, is a collection of three muscles at the fleshy base of the thumb (first digit) on the palmar aspect that acts to exert movement about the thumb. The thenar muscles include abductor pollicis brevis (APB), flexor pollicis brevis (FBB) and opponens pollicis (OPP). [10]