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The term navicular bone or hand navicular bone was formerly used for the scaphoid bone, [1] one of the carpal bones of the wrist. The navicular bone in humans is located on the medial side of the foot, and articulates proximally with the talus, distally with the three cuneiform bones, and laterally with the cuboid.
Navicular syndrome, often called navicular disease, is a syndrome of lameness problems in horses. It most commonly describes an inflammation or degeneration of the navicular bone and its surrounding tissues, usually on the front feet.
The horse's proximal digital sesamoids are simply called the "sesamoid bones" by horsemen, his distal digital sesamoid is referred to as the navicular bone. Ligaments and tendons hold the skeletal system together. Ligaments hold bones to bones and tendons hold bones to muscles.
The coffin bone. The hoof of the horse contains over a dozen different structures, including bones, cartilage, tendons and tissues. The coffin or pedal bone is the major hoof bone, supporting the majority of the weight. Behind the coffin bone is the navicular bone, itself cushioned by the navicular bursa, a fluid-filled sac.
Strictly these should be termed the proximal sesamoid bones whereas the navicular bone should be referred to as the distal sesamoid bone. The patella is also a form of sesamoid bone in the horse. Although many carnivores have radial sesamoid bones, [16] the giant panda and red panda independently evolved to have an enlarged radial sesamoid bone.
An analysis of genome data from 475 ancient horses and 77 modern ones is providing clarity. It revealed that domestication actually occurred twice - the first time being a dead end - and traced ...
Sagittal section of a wild horse hoof. Pink: soft tissues; light gray: bones (P2, P3 and navicular bone); cyan: tendons; red: corium; yellow: digital cushion; dark gray: frog; orange: sole; brown: walls) The third phalanx (coffin bone; pedal bone; P3;) is completely (or almost completely) covered by the hoof capsule. It has a crescent shape and ...
Navicular disease or navicular syndrome: a catch-all phrase used to describe pain in the palmar hoof which was originally attributed to damage to the navicular bone. MRI has since shown that navicular syndrome may be caused by damage to any of the structures within the hoof, including the navicular bone, the navicular bursa, the coffin joint ...