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Extensor indicis muscle

Index Extensor indicis muscle

In human anatomy, the extensor indicis is a narrow, elongated skeletal muscle in the deep layer of the dorsal forearm, placed medial to, and parallel with, the extensor pollicis longus. [1]

23 relations: Anatomical terms of motion, Aponeurosis, Extensor digiti minimi muscle, Extensor digitorum muscle, Extensor expansion, Extensor indicis et medii communis muscle, Extensor medii proprius muscle, Extensor pollicis longus muscle, Forearm, Human body, Index finger, Interosseous membrane, Interosseous membrane of forearm, Juncturae tendinum, Midcarpal joint, Posterior interosseous artery, Posterior interosseous nerve, Radius (bone), Second metacarpal bone, Skeletal muscle, Thieme Medical Publishers, Ulna, Wrist.

Anatomical terms of motion

Motion, the process of movement, is described using specific anatomical terms.

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Aponeurosis

An aponeurosis (plural: aponeuroses) is a type or a variant of the deep fascia, in the form of a sheet of pearly-white fibrous tissue that attaches sheet-like muscles needing a wide area of attachment.

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Extensor digiti minimi muscle

The extensor digiti minimi (extensor digiti quinti proprius) is a slender muscle of the forearm, placed on the ulnar side of the extensor digitorum communis, with which it is generally connected.

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Extensor digitorum muscle

The extensor digitorum muscle (also known as extensor digitorum communis) is a muscle of the posterior forearm present in humans and other animals.

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Extensor expansion

An extensor expansion (dorsal expansion, dorsal hood, dorsal aponeurosis) is the special connective attachments by which the extensor tendons insert into the phalanges.

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Extensor indicis et medii communis muscle

The extensor indicis et medii communis is a rare anatomical variant in the extensor compartment of forearm.

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Extensor medii proprius muscle

The extensor medii proprius (so called the extensor digiti medii) is a rare anatomical variant in the extensor compartment of the forearm.

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Extensor pollicis longus muscle

In human anatomy, the extensor pollicis longus muscle (EPL) is a skeletal muscle located dorsally on the forearm.

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Forearm

The forearm is the region of the upper limb between the elbow and the wrist.

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Human body

The human body is the entire structure of a human being.

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Index finger

The index finger (also referred to as forefinger, first finger, pointer finger, trigger finger, digitus secundus, digitus II, and many other terms), is the first finger and the second digit of a human hand.

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Interosseous membrane

An interosseous membrane is a broad and thin plane of fibrous tissue that separates many of the bones of the body.

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Interosseous membrane of forearm

The interosseous membrane of the forearm (rarely middle or intermediate radioulnar joint) is a fibrous sheet that connects the interosseous margins of the radius and the ulna.

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Juncturae tendinum

In human anatomy, juncturae tendinum or connexus intertendinei refers to the connective tissues that link the tendons of the extensor digitorum communis, and sometimes, to the tendon of the extensor digiti minimi.

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Midcarpal joint

The midcarpal joint is formed by the scaphoid, lunate, and triquetral bones in the proximal row, and the trapezium, trapezoid, capitate, and hamate bones in the distal row.

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Posterior interosseous artery

The posterior interosseous artery (dorsal interosseous artery) is an artery of the forearm.

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Posterior interosseous nerve

The posterior interosseous nerve (or dorsal interosseous nerve) is a nerve in the forearm.

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Radius (bone)

The radius or radial bone is one of the two large bones of the forearm, the other being the ulna.

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Second metacarpal bone

The second metacarpal bone (metacarpal bone of the index finger) is the longest, and its base the largest, of all the metacarpal bones.

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Skeletal muscle

Skeletal muscle is one of three major muscle types, the others being cardiac muscle and smooth muscle.

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Thieme Medical Publishers

Thieme Medical Publishers is a German medical and science publisher in the Thieme Publishing Group.

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Ulna

The ulna is a long bone found in the forearm that stretches from the elbow to the smallest finger, and when in anatomical position, is found on the medial side of the forearm.

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Wrist

In human anatomy, the wrist is variously defined as 1) the carpus or carpal bones, the complex of eight bones forming the proximal skeletal segment of the hand;Behnke 2006, p. 76. "The wrist contains eight bones, roughly aligned in two rows, known as the carpal bones."Moore 2006, p. 485. "The wrist (carpus), the proximal segment of the hand, is a complex of eight carpal bones. The carpus articulates proximally with the forearm at the wrist joint and distally with the five metacarpals. The joints formed by the carpus include the wrist (radiocarpal joint), intercarpal, carpometacarpal and intermetacarpal joints. Augmenting movement at the wrist joint, the rows of carpals glide on each other " (2) the wrist joint or radiocarpal joint, the joint between the radius and the carpus and (3) the anatomical region surrounding the carpus including the distal parts of the bones of the forearm and the proximal parts of the metacarpus or five metacarpal bones and the series of joints between these bones, thus referred to as wrist joints.Behnke 2006, p. 77. "With the large number of bones composing the wrist (ulna, radius, eight carpas, and five metacarpals), it makes sense that there are many, many joints that make up the structure known as the wrist."Baratz 1999, p. 391. "The wrist joint is composed of not only the radiocarpal and distal radioulnar joints but also the intercarpal articulations." This region also includes the carpal tunnel, the anatomical snuff box, bracelet lines, the flexor retinaculum, and the extensor retinaculum. As a consequence of these various definitions, fractures to the carpal bones are referred to as carpal fractures, while fractures such as distal radius fracture are often considered fractures to the wrist.

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Redirects here:

Extensor Indicis, Extensor indicis, Extensor indicis muscles, Extensor indicis proprius, Musculus extensor indicis.

References

[1] https://en.wikipedia.org/wiki/Extensor_indicis_muscle

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