Images Dated 11th February 2003

Post-mortem specimen of human heart

Post-mortem specimen of a human heart featuring an occluded (blocked) coronary artery; the blockage appears as the redder area at top centre. Branches of both left & right coronary arteries, which supply the heart muscle with oxygen, are seen below the surface. Total occlusion of a coronary artery typically occurs as a result of clot (thrombus) formation, often when the diameter of the interior (lumen) has been reduced by the formation of fatty atheroma plaque. As a result of the occlusion, blood supply to heart muscle below the blockage is reduced (ischaemia) or ceased, leading to the death of tissue supplied - an acute myocardial infarction or heart attack

© SCIENCE PHOTO LIBRARY

William Rysdyks Hambletonian 1865, Father of the Trotting Horse. His employer, Seeley

William Rysdyk's Hambletonian 1865, Father of the Trotting Horse. His employer, Seeley, acquired a Charles Kent Mare, which had been permanently injured and was used only for breeding. Sired by Bellfounder, she was of Norfolk Trotter ancestry, a breed noted for its smooth gait. Seeley bred his mare to Abdullah, who was a grandson of Messenger, but a mean and ugly horse. The offspring of the Charles Kent Mare and Abdullah was a bay colt who was to be a keystone in the future of harness racing.
Rysdyk persuaded his employer to sell him the colt and named him Hambletonian. In all, Hambletonian was bred to some 1, 900 mares resulting in 1, 331 foals. Forty of these foals trotted the mile in less than 2 minutes 30 seconds. Among Hambletonian's many distinguished heirs were Dexter, Happy Medium, George Wilkes, Dictator, and Electioneer. The blood of Hambletonian is in most of today's distinguished trotters and pacers. The History of Horse Racing by Roger Longrigg, page 236

© 2003 Topham Picturepoint