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Topic: Trapezium bone


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  Gray, Henry. 1918. Anatomy of the Human Body. Page 225
—The pisiform articulates with one bone, the triangular.
Bones of the Distal Row (lower row).—The Greater Multangular Bone (os multangulum majus; trapezium) (Fig.
The superior surface is directed upward and medialward; medially it is smooth, and articulates with the navicular; laterally it is rough and continuous with the lateral surface.
www.bartleby.com /107/pages/page225.html   (547 words)

  
 Trapezium (bone) - Wikipedia, the free encyclopedia
The trapezium bone (greater multangular bone) is a carpal bone, in what is commonly referred to as the wrist.
The trapezium is distinguished by a deep groove on its palmar surface.
The superior surface is directed upward and medialward; medially it is smooth, and articulates with the scaphoid; laterally it is rough and continuous with the lateral surface.
en.wikipedia.org /wiki/Trapezium_(bone)   (272 words)

  
 Prosthetic thumb joint and method of manufacture - Patent 5549690
The stem is substantially triangular in its cross-section, and it is slightly bent to correspond to the anatomical shape of the metacarpal canal.
After properly preparing the bones 52 and 54, in a manner well known to orthopedic surgeons, the prosthetic members 60,62 are attached to the bones 52 and 54 to correctly mimic the anatomical structure of the joint being replaced.
Bones 52 and 54 will then be enabled to move relative to each other in a manner which will duplicate and mimic their natural rotation around two non-perpendicular and non-intersecting axes of rotation.
www.freepatentsonline.com /5549690.html   (7307 words)

  
 Chapter 25 On the Carpus
Indeed, where the bones touch each other they are not everywhere rough and uneven or covered with ligaments, but smoothly fitted depressions are carved in all of them, lined with smooth, slippery cartilage, and they receive the tubercles or heads of the other bones, which are likewise smooth and covered with cartilage.
This fourth carpal bone therefore has the peculiarity that it is joined to only one wrist bone, that it is the smallest of all the bones of the carpus, and is less concave and convex than the rest.
it enters the depression of the fifth bone; then it is articulated to the seventh by the most slightly protruding capitulum, or rather by a level surface, and it is the smallest bone of the lower row as the seventh is the largest.
vesalius.northwestern.edu /chapters/FA.1.25.html   (3302 words)

  
 cure hand pain - carpal tunnel - tennis elbow - hand pain - hand fracture - hand injury - ganglion cysts - arthritis - ...
In tetrapods, the carpus is the cluster of bones in the hand between the radius and ulna and the metacarpus.
The capitate articulates with seven bones: the navicular and lunate proximally, the second, third, and fourth metacarpals distally, the lesser multangular on the radial side, and the hamate on the ulnar side.
The hamate articulates with five bones: the lunate proximally, the fourth and fifth metacarpals distally, the triangular medially, the capitate laterally.
www.curehandpain.com /pages/hand/carpus.php   (2114 words)

  
 Human Body Skeleton -- Recommendations and Resources   (Site not responding. Last check: 2007-10-13)
The sacrum (the bone at the base of the spine) consists of six bones which are separated at birth but fuse together into a solid structure in later years.
The longest bone in the body is the femur and the smallest is the stapes bone in the middle ear.
The appendicular skeleton consists of the clavicles, scapulae, bones of the upper limb, bones of the pelvis and bones of the lower limb.
www.becomingapediatrician.com /health/76/human-body-skeleton.html   (958 words)

  
 The wrist joint.
In the distal row the trapezium articulates with the 1st metacarpal of the thumb, the trapezoid with the second metacarpal, the capitate with the third metacarpal and the hamate with the fourth and fifth metacarpals.
The articulation of the 1st metacarpal with the trapezium is by a saddle joint.
The 3rd metacarpal bone articulates at its base with the capitate bone and on the sides of the base with the 2nd and 4th metacarpals.
www.med.mun.ca /anatomyts/msk/wrist.htm   (557 words)

  
 Common Fractures of Carpal Bones
Furthermore, the carpal bones normally shift in their relationship to one another during the various arcs of wrist motion.
Fracture of the scaphoid bone is the most common fracture of the carpal bones, and diagnosis is frequently delayed.
Of the remaining bones, 13% have blood supply predominantly in the distal third and 20% have most of the arterial foramina in the waist area of the bone with no more than a single foramen near the proximal third.
www.teambone.com /chapters/hand/scaphoid/carpalbone.html   (3443 words)

  
 Hand
This bone is the first carpal bone (in the distal row) on the thumb side of the hand.
This bone is in the distal row of the carpals, between the trapezium and the capitate bones.
The bones of the fingers (and toes) are known as phalanges (singular : phalanx).
www.american.edu /adonahue/k9hand.htm   (1041 words)

  
 EURORAD
Isolated fractures of the carpal bones, excluding the scaphoid, are relatively uncommon (1).
The carpal tunnel view is useful to detect fractures of the volar surface of the trapezium.
The eight bones of the wrist: capitate bone, hamate bone, lunate bone (SEMILUNAR BONE), pisiform bone, SCAPHOID BONE, trapezium bone, trapezoid bone and triquetral bone.
www.eurorad.org /eurorad/case.php?id=2264   (355 words)

  
 Related WordNet synsets for SUMO concept Bone   (Site not responding. Last check: 2007-10-13)
the bone in the ankle that articulates with the leg bones to form the ankle joint
bone (calcified tissue) surrounding the pulp cavity of a tooth
the bones of the skull that frame the mouth and serve to open it; the bones that hold the teeth
virtual.cvut.cz /kifb-test/wordnet/_bone.html   (1575 words)

  
 Trapezium - Search Results - ninemsn Encarta
Trapezium, in plane geometry, quadrilateral (four-sided) figure with two parallel sides, or bases, generally of unequal length.
Smooth muscle is found in organs also made up of other tissues, such as the heart and intestines, which contain layers of connective tissue.
- wrist bone: a small bone in the wrist at the base of the thumb
au.encarta.msn.com /Trapezium.html   (86 words)

  
 Orthopedics - Hand and Wrist
The basal joint is formed by a small wrist bone (trapezium) and the first bone of the thumb (metacarpal).
In addition, pressing the thumb firmly against the wrist bone while moving the basal joint may also be done to see if there is pain and/or a gritty feeling, which means the bones are rubbing together.
In the most severe cases, arthroplasty--replacing the arthritic joint surfaces or the entire trapezium with soft tissue from the wrist to stabilize the remaining bone--may be required.
www.bethisraelny.org /services/orthopedics/basal.html   (621 words)

  
 NASAexplores 9-12 Lesson: A Handy Robot (Student Sheets)
For the fingers, the bone between the proximal and the distal phalange is called the middle phalange.
The metacarpal bone is one of five long, cylindrical bones in the body of the hand.
The bones run from the carpal bones of the wrist to the base of each finger and the thumb of the hand, which form the knuckles.
www.nasaexplores.com /show_912_student_st.php?id=030214140547   (495 words)

  
 Laguna Medical Systems
The five bones proximal to the phalanges are the metacarpals.
The wrist joint is comprised of the carpals and the distal ends of the two long bones of the forearm, the radius and ulna.
Finally, a cushion is constructed to pad the space between the bones where the trapezium bone used to be.
www.lagunamedsys.com /edgearchive/feature051599.htm   (3978 words)

  
 Arthritis of the Base of the Thumb   (Site not responding. Last check: 2007-10-13)
The basilar joint of the thumb is formed by a small wrist bone and the first bone of the three bones in the thumb (see Diagram 1).
The basilar joint of the thumb is formed by a small wrist bone (trapezium) and the first of the three bones of the thumb (metacarpal).
The pain produced when moving the first thumb bone back against the wrist bone in a circular motion means that the bones are rubbing directly against each other.
www.celebrationhealth.com /handcenter/arthritis_thumb.htm   (551 words)

  
 Chapter 26 On the Metacarpus
Moreover, they include the first bone of the thumb with the metacarpus perhaps because the second bone [phalanx proximalis] of the thumb is articulated with the first in nearly the same way (C, D in fig.
Be that as it may, to adapt ourselves more correctly to the view of Galen we shall always count the metacarpals as four and the bones of the fingers as fifteen.
The metacarpal bones are longer than the other bones of the fingers, and they are for the most part smoothly rounded.
vesalius.northwestern.edu /chapters/FA.1.26.html   (1342 words)

  
 Trapezoid bone - Wikipedia, the free encyclopedia
The trapezoid bone (lesser multangular bone) is a carpal bone in tetrapods, including humans.
It is the smallest bone in the distal row.
It may be known by its wedge-shaped form, the broad end of the wedge constituting the dorsal, the narrow end the palmar surface; and by its having four articular facets touching each other, and separated by sharp edges.
en.wikipedia.org /wiki/Trapezoid_bone   (297 words)

  
 :::► Dictionary of Meaning www.mauspfeil.net ◄::: (via CobWeb/3.1 planetlab1.netlab.uky.edu)   (Site not responding. Last check: 2007-10-13)
= The thumb (connected to the trapezium (bone) trapezium) is located on one of the sides, parallel to the arm.
The human hand has at least 27 bones: the carpal bone carpus or wrist account for 8; the metacarpus or palm contains 5; the remaining 14 are digital bones.
The Intrinsic muscle groups are the thenar and hypothenar muscles (thenar referring to the thumb, hypothenar to the small finger), the interosseus muscles (between the metacarpal bones, four dorsally and three volarly) and the lumbrical muscles.
www.mauspfeil.net.cob-web.org:8888 /hand.html   (1461 words)

  
 KORT - Kentucky Orthopedic Rehab Team   (Site not responding. Last check: 2007-10-13)
The CMC joint (an abbreviation for carpometacarpal joint) of the thumb is where the metacarpal bone of the thumb attaches to the trapezium bone of the wrist.
The piece of tendon is sewn into a small ball and placed into the space where the trapezium bone was removed.
The remaining portion of the tendon is sewn to the thumb metacarpal to stabilize the joint.
www.kort.com /hand/handarthro.asp   (1301 words)

  
 SBI - Small Bone Innovations } CMC Implant
The implant is fixed in the metacarpal using a mantle of bone cement.
A mantle of bone cement is used to facilitate fixation to the trapezium bone.
The implant is provided with instrumentation to aid in bone preparation and proper size determination.
www.totalsmallbone.com /products/cmc.html   (187 words)

  
 KORT - Kentucky Orthopedic Rehab Team   (Site not responding. Last check: 2007-10-13)
The surface of the trapezium is shaped into a rounded cone that fits into the socket inside the thumb metacarpal.
A metal pin allows the surgeon to hold the two bones in the correct alignment and prevents the bones from moving too much as they grow together, or fuse.
This usually means adding more bone graft and making sure that any metal pins that have been used are holding the bones still to allow the fusion to occur.
www.kort.com /hand/handthumbfus.asp   (1363 words)

  
 Osteoarthritis of the base of the thumb
The preferred operation is trapeziectomy, in which the trapezium bone is removed.
The gap that this leaves is partly obliterated by natural movement of the thumb towards the scaphoid bone in the wrist.
Insertion of a soft cushion made from part of a neighbouring tendon probably helps in the formation of a new joint, and its attachment to the bone at the base of the thumb (the metacarpal) also helps provide stability as the joint heals.
www.evans-hand.com /osteoarthritis.htm   (507 words)

  
 Bones: The Man in the Wall - TV.com
Scaphoid - The scaphoid bone of the wrist is found on the thumb side of the hand.
It is approximately the size and shape of a cashew, and is slow to heal because of the poor circulation to the bone.
Trapezium - a carpal bone in the human wrist.
www.tv.com /bones/the-man-in-the-wall/episode/498736/summary.html   (735 words)

  
 Bones: A Man on Death Row - TV.com
Radius - the bone of the forearm that extends from the inside of the elbow to the thumb side of the wrist.
Trapezium - A wrist bone that articulates with the scaphoid.
Bones and her team gave up their weekend to help clear a death row inmate.
www.tv.com /bones/a-man-on-death-row/episode/463913/summary.html   (716 words)

  
 Medical Dictionary: Trapezium bone - WrongDiagnosis.com
Trapezium bone: the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
Terms that may be interchangeable with Trapezium bone:
The following list attempts to classify Trapezium bone into categories where each line is subset of the next.
www.wrongdiagnosis.com /medical/trapezium_bone.htm   (193 words)

  
 Scaphoid bone - Wikipedia, the free encyclopedia
The scaphoid bone of the wrist is found on the thumb side of the hand, within the anatomical snuffbox.
It is known as the "navicular" in older texts, from its fancied resemblance to a boat.
Fortunately, it is relatively difficult to break, but is the most commonly fractured bone in the carpus, particularly because of its unique anatomy and position within the wrist.
en.wikipedia.org /wiki/Scaphoid_bone   (422 words)

  
 Related WordNet synsets for SUMO concept Bone
the cube shaped bone on the outer side of the tarsus
a wrist bone that articulates with the pisiform and hamate and lunate bones
having bones especially many or prominent bones; "a bony shad fillet"; "her bony wrist"
virtual.cvut.cz /kifb/wordnet/_bone.html   (1575 words)

  
 Connexin 40, a Target of Transcription Factor Tbx5, Patterns Wrist, Digits, and Sternum -- Pizard et al. 25 (12): 5073 ...
of the sternum and wrist bone perichondrium (Fig.
Fusions in Cx40 mutant mice often involved the trapezoid (64 to 94%) and rarely involved the capitate (12 to 50%) bones.
Gap junction proteins exhibit early and specific expression during intramembranous bone formation in the developing chick mandible.
mcb.asm.org /cgi/content/full/25/12/5073   (5300 words)

  
 Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 4. Upper Limb
The retinaculum passes between the hook of the hamate (32) and the crest or tubercle of the trapezium (7).
The ulnar nerve (30) is seen passing medial to the hook of the hamate (32) to enter the hand.
The passage of the ulnar nerve, deep branch (30), into the hand is via a canal (of Guyon) whose sides (with the hand in the anatomic position) include the pisohamate ligament above, the pisiform bone medially, the hook of the hamate laterally, and the transverse carpal ligament below.
www.anatomyatlases.org /HumanAnatomy/4Section/29.shtml   (345 words)

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