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Dorsal interossei of the hand information


Dorsal interossei of the hand
Interossei dorsales of left hand, superior view
Details
OriginMetacarpals
InsertionProximal phalanges and extensor expansions
ArteryDorsal and palmar metacarpal artery
NerveDeep branch of ulnar nerve
ActionsAbduct finger
AntagonistPalmar interossei
Identifiers
Latinmusculi interossei dorsales manus
TA98A04.6.02.066
TA22533
FMA37418
Anatomical terms of muscle
[edit on Wikidata]

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 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.[1]

  1. ^ "Dorsal Interossei (DI)". Washington University school of Medicin in St.Louis. 2010. Archived from the original on 24 February 2021. Retrieved 9 December 2012.

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Dorsal interossei of the hand

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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 hand's midline...

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Palmar interossei muscles

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the hand that lie between the metacarpal bones and are attached to the index, ring, and little fingers. They are smaller than the dorsal interossei of...

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Dorsal interossei (Latin: interossei dorsales) may refer to: Dorsal interossei of the hand, musculi interossei dorsales manus Dorsal interossei of the...

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Dorsal interossei of the foot

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In human anatomy, the dorsal interossei of the foot are four muscles situated between the metatarsal bones. The four interossei muscles are bipenniform...

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Extensor expansion

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of the proximal phalanx and stretch all the way to the distal phalanx. The lumbricals of the hand, extensor indicis muscle, dorsal interossei of the hand...

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Interossei

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muscles of the hand Palmar interossei muscles Dorsal interossei muscles of the hand Palmar interossei muscles Dorsal interossei muscles of the foot Plantar...

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digitorum Two intrinsic hand muscles: Fourth lumbrical muscle Third palmar interosseous muscle Note: the dorsal interossei of the hand muscles do not have...

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of the right foot. Plantar surface. Muscles of the sole of the foot. Interosseous muscles of the hand Dorsal interossei of the hand Palmar interossei...

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muscles Dorsal interossei Palmar interossei Adductor Pollicis Flexor pollicis brevis (deep head) In the hand, via the superficial branch of ulnar nerve:...

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against resistance. This occurs because the ulnar nerve also innervates the palmar and dorsal interossei of the hand. Patients with this deficit will become...

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sets: 4 Dorsal interossei - Abduct the digits away from the 3rd digit (away from axial line) and are bipennate. 3 Palmar interossei - Adduct the digits...

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Interphalangeal joints of the hand

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The interphalangeal joints of the hand are the hinge joints between the phalanges of the fingers that provide flexion towards the palm of the hand. There...

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Hand

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The opisthenar area (dorsal) is the corresponding area on the posterior part of the hand. The heel of the hand is the area anteriorly to the bases of...

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Dorsal metacarpal arteries

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of the dorsal metacarpal arteries arise from the dorsal carpal arch and run downward on the second, third, and fourth dorsal interossei of the hand and...

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lies upon the bases of the metacarpal bones and on the interossei of the hand. It is deep to the oblique head of the adductor pollicis muscle, the flexor...

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and is reinforced, in this situation, by the tendons of the Interossei and Lumbricalis. Opposite the first interphalangeal joints this aponeurosis divides...

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digiti minimi brevis of proximal phalanges at metatarsophalangeal joint Lumbrical muscle (foot) Plantar interossei Dorsal interossei torso/lumbar vertebrae...

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Extensor digitorum muscle

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covers the dorsal surface of the first phalanx and is reinforced, in this situation, by the tendons of the interossei and lumbricalis. Opposite the first...

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Upper limb

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In addition, the central group of intrinsic hand muscles give important contributions to human dexterity. The palmar and dorsal interossei adduct and abduct...

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Third metatarsal bone

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with the third proximal phalanx. The second and third dorsal interossei muscles attaches to the third metatarsal bone. The second dorsal interossei from...

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Foot

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phalanges of digits two to five. The plantar interossei adduct and the dorsal interossei abduct these digits, and are also plantar flexors at the metatarsophalangeal...

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Fourth metatarsal bone

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dorsal interossei muscles attaches to the fourth metatarsal bone. The third dorsal interossei from the medial side of the bone and the fourth dorsal interossei...

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by the deep branch of the ulnar nerve (C8-T1). The first dorsal interosseous, one of the central muscles of the hand, extends from the base of the thumb...

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Cervical spinal nerve 8

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