carpal bones

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car·pal bones

eight bones arranged in two rows that articulate proximally with the radius and indirectly with the ulna, and distally with the five metacarpal bones; in domestic mammals, bones of the proximal row are called radial, intermediate, ulnar, and accessory, whereas distal row bones are termed first, second, third, and fourth carpal bones.
Synonym(s): carpus (2) [TA], ossa carpi [TA]

carpal bones

the eight bones of the wrist, which are arranged in two rows, a proximal and a distal row, each consisting of four bones. The proximal row consists of the scaphoid (navicular), the lunate, the triquetrum, and the pisiform bones. The distal row consists of the trapezium (greater multiangular), the trapezoid (lesser multiangular), the capitate, and the hamate bones. Also called wrist.

car·pal bones

(kahr'păl bōnz) [TA]
Eight bones arranged in two rows that articulate proximally with the radius and indirectly with the ulna, and distally with the five metacarpal bones.
Synonym(s): carpus (2) [TA] .


pertaining to the carpus.

carpal bones
are located between the radius and ulna and metacarpals. Typically, there are six to eight bones, depending on the animal species, arranged in two rows and numbered from medial to lateral. See Table 10.
carpal canal syndrome
see carpal tunnel syndrome (below).
carpal flexion posture
at parturition the fetus is presented with the carpal joints flexed, thus increasing the diameter of initial parts entering the pelvic canal, resulting in dystocia in some patients.
carpal fracture
carpal instability/flexion syndrome
seen in young puppies, particularly Doberman pinschers and Shar peis; the carpi remain slightly flexed when standing and the paws are deviated inwards.
carpal organ
a group of vibrissae located on the posterior aspect of the forelimbs of cats, sensitive to touch. See also tactile hair organ.
carpal pad
see footpad.
carpal sheath
common synovial sheath in the forelimb of the horse, shared by the superficial and deep flexor tendons as they pass through the carpal canal.
carpal tunnel
the osseofibrous passage for the flexor tendons and median nerve, formed by the flexor retinaculum and the carpal bones.
carpal tunnel syndrome
a complex of signs resulting from compression of the median nerve in the carpal tunnel. In horses there is lameness with pain on extreme carpal flexion. There are no lesions on the anterior carpal bones.

Patient discussion about carpal bones

Q. I'm looking for natural/organic ways to deal with carpal tunnel syndrome. My Boss has Carpal Tunnel syndrome. I'm looking for some natural remedies to help her ease the pain.

A. I have found that MSM (GNC brand) 1500mg per day works for me. I talked to an Orthopedic Surgeon asking him why it works... he said "they really don't know why it works, but it works for many of my patients". When I stop taking my MSM the symptoms return so it is not a cure.

I have tried other brands of MSM and found the GNC brand works the best for me. It takes about 2 weeks to begin to see the results and several more weeks to get the full affect.

Q. what can i do to help my capentunnel without surgery?

A. a good friend of mine is a bike racer and did the surgery- it's not a bad solution as it seems...but you can try and put on a splint to stabilize the wrist. The splint is worn at night for several weeks. If this does not help, you may need to wear the splint during the day. Hot and cold compresses may also be recommended.

There are many ergonomic devices that can be used in the workplace to reduce the stress placed on the wrist. These include special keyboards, cushioned mouse pads, and keyboard drawers. Make sure the keyboard is low enough so that the wrists aren't bent upward during typing. You may also need to make changes in your work duties or recreational activities.

More discussions about carpal bones
References in periodicals archive ?
Computed tomographic documentation of a comminuted fourth carpal bone fractures associated with carpal instability treated by partial carpal arthrodesis in an Arabian Filly.
In a review of literature including hand published articles from 1935 to 2005, only 29 cases of GCT of carpal bones (averaged age of patients 32,6 years ranging from 16 to 80 years, data from three publications not available) could be found by Shigematsu et al.
The rationale of carpal bone mobilization (CBM) instead of the unproven effects of the nerve gliding technique is that there is limited but promising evidence regarding its efficacy.
26 kg, with the technique requiring significant wrist movement, particularly dorsiflexion, and thus the wrist and carpal bones are placed under considerable forces during this sport.
Closed reduction of acute dislocations of the semilunar carpal bone.
These carpal bones in turn articulate with five metacarpal bones.
The eight carpal bones (situated in the area of the hand between the knuckles and the wrist joint) and four articulations (joints), of the wrist give it a complex anatomy that's vulnerable to degeneration and injury, says Peter Tang, MD, an orthopedic hand surgeon at New York-Presbyterian Hospital/Columbia University Medical Center and assistant professor of orthopedic surgery at Columbia University College of Physicians and Surgeons.
The interosseous muscle is mostly tendinous, and originates from the second row of the carpal bones, the accessory carpal bone, the caudal aspect of radius, and the base of the metacarpal bones III & IV and runs against the palmar aspect of the metacarpal bones (Fig.
3) This box was developed to provide a magnified and distorted image of the carpal bones.
Features analysis of the carpal bones can reveal the important information for skeletal age assessment.
While investigating natural and human-caused mortality of moose (Alces alces) in Minnesota during 1972-2000, amount of marrow fat was estimated in femur, tibia, mandible, humerus, radius, tarsal, and carpal bones of individual moose.