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Topic: Phalanx bones


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In the News (Thu 26 Nov 09)

  
  Hand
Sesamoid bones are small ossified nodes embedded in the tendons to provide extra leverage and reduce pressure on the underlying tissue.
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.
The deep flexor attaches to the distal phalanx, and the superficial flexor attaches to the middle phalanx.
www.brainyencyclopedia.com /encyclopedia/h/ha/hand.html   (1337 words)

  
 Anatomical Dictionary
bone formed by the fusion of the of the anklebones astragalus (a) and calcaneum (c).
Osteoderms include the scutes of crocodiles, the keeled scutes, spines, and tail-club bones of ankylosaurs, and the plates, spines, and gular ossicles of stegosaurs.
in birds and some dinosaurs, the hind limb bone formed by the fusion of the bottom of the tibia, or calf bone, with the astragalus, the largest ankle bone of dinosaurs and birds.
www.dinosauria.com /dml/anatomy.htm   (1792 words)

  
 Medieval warfare - Wikipedia, the free encyclopedia
Pike weapons were considered "unchivalorous" by some of the knightly class, and could be mixed in combat, with spearlike thrusters in the front franks, and slashing halberd men deployed further back after the thrusters had delivered the initial shock treatment.
In numerous battles prior to the rise of the Swiss, it was not uncommon for pikemen to group together and await a mounted attack.
It was not unusual for them to round up the surviving civilian population of a city or area, and drive the victims forward against their own people.
en.wikipedia.org /wiki/Medieval_warfare   (7369 words)

  
 Articles - Hand   (Site not responding. Last check: 2007-11-02)
Opposable thumbs are identified by the ability to be brought opposite to the fingers, a muscle action known as opposition.
The bones of proximal row are (from lateral to medial): scaphoid, lunate, triquetral and pisiform.
The bones of the distal row are (from lateral to medial): trapezium, trapezoid, capitate and hamate.
www.seekj.com /articles/Hand   (1321 words)

  
 Artiodactyla   (Site not responding. Last check: 2007-11-02)
The nasal bones of the artiodactyls are not expanded caudally, nor is there an alisphenoid canal.
The bones in the feet (metapodials) are fused to form a cannon bone, although in Hyemoschus (Tragulidae) this does not occur until after maturity.
The horns are composed of a bone core and are covered with a keratin sheath which is never shed.
www.ultimateungulate.com /Artiodactyla.html   (1347 words)

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