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Third metacarpal bone information


Third metacarpal bone
Third metacarpal of the left hand (shown in red). Palmar view.
The left third metacarpal.
Details
Identifiers
Latinos metacarpale III
TA21269
FMA23901
Anatomical terms of bone
[edit on Wikidata]

The third metacarpal bone (metacarpal bone of the middle finger) is a little smaller than the second.

The dorsal aspect of its base presents on its radial side a pyramidal eminence, the styloid process, which extends upward behind the capitate; immediately distal to this is a rough surface for the attachment of the extensor carpi radialis brevis muscle.

The carpal articular facet is concave behind, flat in front, and articulates with the capitate.

On the radial side is a smooth, concave facet for articulation with the second metacarpal, and on the ulnar side two small oval facets for the fourth metacarpal.

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Third metacarpal bone

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The third metacarpal bone (metacarpal bone of the middle finger) is a little smaller than the second. The dorsal aspect of its base presents on its radial...

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In human anatomy, the metacarpal bones or metacarpus, also known as the "palm bones", are the appendicular bones that form the intermediate part of the...

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Second metacarpal bone

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

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Fifth metacarpal bone

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The fifth metacarpal bone (metacarpal bone of the little finger or pinky finger) is the most medial and second-shortest of the metacarpal bones. It presents...

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Fourth metacarpal bone

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The fourth metacarpal bone (metacarpal bone of the ring finger) is shorter and smaller than the third. The base is small and quadrilateral; its superior...

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First metacarpal bone

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The first metacarpal bone or the metacarpal bone of the thumb is the first bone proximal to the thumb. It is connected to the trapezium of the carpus...

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Capitate bone

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with the third metacarpal bone (the middle finger) and forms the third carpometacarpal joint. The capitate bone is the largest of the carpal bones in the...

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Carpometacarpal bossing

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Carpometacarpal bossing (or metacarpal/carpal bossing) is a small, immovable mass of bone on the back of the wrist. The mass occurs in one of the joints...

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Third metatarsal bone

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The third metatarsal is analogous to the third metacarpal bone in the hand Like the four other metatarsal bones, it can be divided into three part: base...

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Scaphoid bone (2) Lunate bone (2) Triquetral bone (2) Pisiform bone (2) Trapezium (2) Trapezoid bone (2) Capitate bone (2) Hamate bone (2) Metacarpals (10...

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analogous to the metacarpal bones of the hand. The lengths of the metatarsal bones in humans are, in descending order, second, third, fourth, fifth, and...

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intermetacarpal articulations which unite the metacarpal bones: the dorsal, interosseous, and palmar metacarpal ligaments. (Shown in yellow in the figure...

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Bone fracture

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through the base of the first metacarpal bone Bennett's fracture – a fracture of the base of the first metacarpal bone which extends into the carpometacarpal...

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Third metacarpal styloid process

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The third metacarpal styloid process enables the hand bone to lock into the wrist bones, allowing for greater amounts of pressure to be applied to the...

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Extensor carpi radialis brevis muscle

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of the base of the third metacarpal bone, with a few fibres inserting into the medial dorsal surface of the second metacarpal bone. Under the extensor...

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Phalanx bone

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and even-toed ungulates, what remain of the "hands" — the metacarpal and phalangeal bones — are elongated to the extent that they serve little use beyond...

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Extrinsic extensor muscles of the hand

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second metacarpal bone on its radial side to extend and abduct the wrist. The ECRB inserts into the lateral dorsal surface of the base of the third metacarpal...

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Adductor pollicis muscle

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the metacarpal bones and the interosseous muscles. The oblique head (Latin: adductor obliquus pollicis) arises by several slips from the capitate bone, the...

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Flexor carpi radialis muscle

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the anterior aspect of the base of the second metacarpal, and has small slips to both the third metacarpal and trapezium tuberosity. The tendon of the flexor...

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Muscles of the thumb

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originates along the entire third metacarpal bone, while the oblique head originates on the carpal bones proximal to the third metacarpal. The muscle is inserted...

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Steve Finley

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in a June 8 road game against the Montreal Expos, breaking the third metacarpal bone in his right hand. In December 1994, he was traded by the Astros...

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Fifth metatarsal bone

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fifth metatarsal is analogous to the fifth metacarpal bone in the hand. As with the four other metatarsal bones it can be divided into three parts; a base...

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Bone

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A bone is a rigid organ that constitutes part of the skeleton in most vertebrate animals. Bones protect the various other organs of the body, produce...

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Wrist

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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...

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Dilophosaurus

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truncated articular surface of its third metacarpal bone, and deformities on the first phalanx bone of the third finger. This finger was permanently deformed...

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Thumb

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originates along the entire third metacarpal bone, while the oblique head originates on the carpal bones proximal to the third metacarpal. The muscle is inserted...

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Hand

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thumb. The metacarpal bones connect the fingers and the carpal bones of the wrist. Each human hand has five metacarpals and eight carpal bones. Fingers...

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