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Carpal bones information


Carpals
Labelled image showing the eight carpal bones.
Details
Identifiers
Latinos carpale
pl. ossa carpi
MeSHD002348
TA98A02.4.08.001
TA21249
FMA71335 23889, 71335
Anatomical terms of bone
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The carpal bones are the eight small bones that make up the wrist (carpus) that connects the hand to the forearm. The term "carpus" and "carpal" is derived from the Latin carpus and the Greek καρπός (karpós), meaning "wrist". In human anatomy, the main role of the carpal bones is to articulate with the radial and ulnar heads to form a highly mobile condyloid joint (i.e. wrist joint),[1] to provide attachments for thenar and hypothenar muscles, and to form part of the rigid carpal tunnel which allows the median nerve and tendons of the anterior forearm muscles to be transmitted to the hand and fingers.

In tetrapods, the carpus is the sole cluster of bones in the wrist between the radius and ulna and the metacarpus. The bones of the carpus do not belong to individual fingers (or toes in quadrupeds), whereas those of the metacarpus do. The corresponding part of the foot is the tarsus. The carpal bones allow the wrist to move and rotate vertically.[1]

  1. ^ a b Kingston 2000, pp 126-127

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Carpal bones

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The carpal bones are the eight small bones that make up the wrist (carpus) that connects the hand to the forearm. The term "carpus" and "carpal" is derived...

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Metacarpal bones

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(fingers) and the carpal bones (wrist bones), which articulate with the forearm. The metacarpal bones are homologous to the metatarsal bones in the foot. The...

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Carpal tunnel

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body, the carpal tunnel or carpal canal is a flattened body cavity on the flexor (palmar/volar) side of the wrist, bounded by the carpal bones and flexor...

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Wrist

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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; (2)...

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Hand

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

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Scaphoid bone

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The scaphoid bone is one of the carpal bones of the wrist. It is situated between the hand and forearm on the thumb side of the wrist (also called the...

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Lunate bone

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proximal row carpal bones, which lie between the ulna and radius and the hand. The lunate carpal bone is situated between the lateral scaphoid bone and medial...

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Flexor retinaculum of the hand

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(transverse carpal ligament or anterior annular ligament) is a fibrous band on the palmar side of the hand near the wrist. It arches over the carpal bones of the...

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Hamate bone

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hamate is an irregularly shaped carpal bone found within the hand. The hamate is found within the distal row of carpal bones, and abuts the metacarpals of...

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Capitate bone

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capitate bone is a bone in the human wrist found in the center of the carpal bone region, located at the distal end of the radius and ulna bones. It articulates...

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Glossary of medicine

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the carotid arteries, usually caused by atherosclerosis. Carpal bones – Are the eight small bones that make up the wrist (or carpus) that connects the hand...

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Triquetral bone

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lunate bones. It is the 2nd most commonly fractured carpal bone. The triquetral is one of the eight carpal bones of the hand. It is a three-faced bone found...

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List of anatomy mnemonics

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Mini Pechay He Races Until Chunky Men Pace Humerus Radius Ulna Carpal bones Metacarpal bones Phalanges (In order from proximal to distal) "Ultra Red Hair"...

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Carpal tunnel syndrome

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Carpal tunnel syndrome (CTS) is the collection of symptoms and signs associated with nerve compression of the median nerve at the carpal tunnel. Most CTS...

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Bone age

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fingers, and all of the carpal bones except the pisiform. An atlas based on knee maturation has also been compiled. The bones in the hand a wrist in a...

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Pisiform bone

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articulating with the triquetral bone. It is on a plane anterior to the other carpal bones and is spheroidal in form. The pisiform bone has four surfaces: The dorsal...

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Carpal coalition

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Carpal coalition is the abnormal fusion of two or more carpal bones when they fail to segment during intrauterine development. First described by Eduard...

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Intercarpal joints

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bones, those of the distal row of carpal bones, and those of the two rows with each other. The bones in each carpal row interlock with each other and...

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Anatomical snuffbox

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dorsal aspect of the hand—at the level of the carpal bones, specifically, the scaphoid and trapezium bones forming the floor. The name originates from the...

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List of bones of the human skeleton

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bones at the time of birth, but later decreases to 206: 80 bones in the axial skeleton and 126 bones in the appendicular skeleton. 172 of 206 bones are...

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Upper limb

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Pectoralis major, coracobrachialis The bones forming the human upper limb are Clavicle Scapula Humerus Radius Ulna Carpal bones Scaphoid Lunate Triquetral Pisiform...

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Radial dysplasia

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minor anomaly to complete absence of the radius, radial side of the carpal bones and thumb. Hypoplasia of the distal humerus may be present as well and...

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Navicular bone

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navicular bone was formerly used for the scaphoid bone, one of the carpal bones of the wrist. The navicular bone in humans is located on the medial side of the...

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Carpometacarpal joint

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the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal bones. The CMC joint of the thumb or the first CMC...

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Bone

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are long bones. The exceptions are the eight carpal bones of the wrist, the seven articulating tarsal bones of the ankle and the sesamoid bone of the kneecap...

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Joints of hand

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Between the carpal bones are the intercarpal articulations and the midcarpal joint. The carpometacarpal joint connects the carpal bones to the metacarpus...

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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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Ulnar nerve

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Downstate Medical Center - "Transverse section through the carpal tunnel and distal row of the carpal bones." Ulnar nerve at the Duke University Health System's...

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