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A Bouchard's node on the proximal interphalangeal joint of the index finger of a 64 year old man. Bouchard's nodes are comparable in presentation to Heberden's nodes , which are similar osteoarthritic growths on the distal interphalangeal joints , [ 1 ] but are significantly less common.
The 'Ripper' in Star Trek: Discovery is a tardigrade enlarged to monstrous size, with extraordinary capabilities said in the TV series to have been acquired by horizontal gene transfer. [73] The tardigrades' traits, including their ability to survive extreme conditions, [74] have earned them a place in science fiction and other pop culture.
Mallet finger is acquired due to injury to the thin extensor tendon that functions to straighten the end (DIP) joint of a finger. [8] Jamming of the finger induces a rupture of the extensor tendon or a broken bone at the tendon's site of attachment. [9] This results in a droopy and crooked appearance of the end joint of the finger, resembling a ...
Aerobius is a genus of extinct tardigrades ("water bears") of the superfamily Hypsibioidea. The genus contains a single species , A. dactylus , known from a single individual preserved in amber . The Aerobius holotype is preserved in the same piece of Late Cretaceous amber as Beorn , another extinct tardigrade.
The earliest sign of a contracture is a triangular "puckering" of the skin of the palm as it passes over the flexor tendon just before the flexor crease of the finger, at the metacarpophalangeal (MCP) joint. [citation needed] Late stage Dupuytren's contracture upon the left hand affecting the little finger and the ring finger but not the index ...
Graham Budd argued that the lack of this system in recent tardigrades is due to their miniature size, which makes a complex circulatory system superfluous; thus, the loss of this feature would be a secondary property, acquired as the tardigrade stem group turned smaller, and both the Euarthropoda+Onychophora circulatory system and a relatively ...
Heberden's nodes are hard or bony swellings that can develop in the distal interphalangeal joints (DIP) (the joints closest to the end of the fingers and toes). [1] They are a sign of osteoarthritis and are caused by formation of osteophytes (calcific spurs) of the articular (joint) cartilage in response to repeated trauma at the joint.
The 2D:4D ratio is calculated by dividing the length of the index finger by the length of the ring finger of the same hand. Other digit ratios are also calculated similarly in the same hand. The digit length is typically measured on the palmar (ventral, "palm-side") hand, from the midpoint of the bottom crease to the tip of the finger. [8]
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