... cause large variation in f H , thereby confounding temporal averages of f H . Diving physiology Marine mammals Cardiac ultrasound Cetaceans Aortic flow Ejection fraction Dive response Respiratory sinus arrythmia Summary: Data from five species of cetaceans show a strong...

...Catherine J. A. Williams; Eva M. Greunz; Steffen Ringgaard; Kasper Hansen; Mads F. Bertelsen; Tobias Wang ABSTRACT The ejection fraction of the trabeculated cardiac ventricle of reptiles has not previously been measured. Here, we used the gold standard clinical methodology – electrocardiogram-gated...

... cardiovascular plasticity in awake and unrestrained cetaceans in water. Diving physiology Marine mammals Cardiac ultrasound Cetaceans Aortic flow Ejection fraction Cardiac reserve The volume of blood leaving the left heart (the cardiac output, CO) is a product of the volume of blood ejected...

... are the essential components for the cardiac function of the mussel. Cardiac cycle Heart rate Haemolymph flow Stroke volume Ejection fraction Renocardiovascular system Bivalve The physiology of the hearts of bivalve molluscs has been studied for many years ( Bayne, 1976 ; Beninger and Le...