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| Keywords: Life in Motion Fig 62.png en Fig 62 ”The frog-heart apparatus as devised by Professor Kronecker of Berne g the heart fixed on the end of a tube which has two branches One branch to the left d communicates with a stop-cock a by which the heart can be fed with blood either from the tube c or b The other limb of the tube to the right passes to a small manometer containing mercury On the longer limb of the manometer is a little glass rod e f When the heart beats it cannot force the blood back to the tube b by d because the stop-cock a is shut It presses on the mercury in the manometer and raises e f Life in Motion or Muscle and Nervehttps //archive org/details/b21929786 John Gray McKendrick 1892 1926 Life in Motion book Animal hearts | ||||
