. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 1. Terms and Definitions: Basic Parameters of Myocardial Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 2. Techniques Used to Assess Local Cardiac Chamber Wall Dynamics . . . . . . . . . . . . . . ...

Lead-induced mortality appears to have been a major factor in the decline of the California condor (Gymnogyps californianus). We orally dosed turkey vultures (Cathartes aura) with BB-sized lead shot from January 1988 through July 1988 to determine physiologic response (delta-aminolevulinic acid dehydratase inhibition, erythrocyte protoporphyrin levels, anemia), diagnostic tissue lead concentrat...

PHYSIOLOGIC mechanisms which influence cardiac function through alterations of the physical state of heart muscle have not been demonstrated, despite much experimental effort. This type of cardiac regulation can be identified only by sudden changes of myocardia! stiffness or distensibility. Experimental evidence for alterations of myocardial elasticity which occurred after variation of physiolo...

THE CLINICAL importance of ischemic heart disease has provided a powerful stimulus for the development of new and better methods for the study of the coronary circulation. In the animal laboratory, the electromagnetic flowmeter has replaced the rotameter as the standard method of measuring coronary blood flow. Flowmeter probes can be implanted around a dog's coronary artery and utilized to stud...