Related Experiment Video
Updated: Feb 13, 2026

Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography
Published on: October 28, 2020
Pumping Function of Heart Ventricles in Different Mammalian Species under Conditions of Electrical Cardiostimulation
N A Kibler1, V P Nuzhny2, P V Nuzhny3
1Institute of Physiology, Komi Research Center, Ural Division of Russian Academy of Sciences, Syktyvkar, Russia. natanadya@mail.ru.
Abstract:
Pumping function of the heart ventricles under conditions of electrical stimulation was examined in adult dogs and rabbits. Pacing induced different changes in intracardiac hemodynamics manifested in impairment of pumping function of the right ventricle, which is largely determined by the functional state of the left ventricle. Initially high HR in rabbits more deeply limited functional reserve of the myocardium in response to electrical stimulus and was accompanied by more pronounced disturbances of pumping function of both ventricles.
Related Concept Videos
Anatomy of the Heart
What is a Species?
Formation of Species
Keystone Species
ATP Driven Pumps III: V-type Pumps
The peripheral or cytosolic V1 domain with eight subunits is involved in ATP hydrolysis. The integral or transmembrane V0 domain containing at least five subunits...
ATP Driven Pumps II: P-type Pumps
A typical P-type pump has three cytosolic domains: nucleotide-binding (N), phosphorylation (P), and activator (A) domains. These domains are connected to the membrane-spanning helices by short amino acid segments. ATP hydrolysis and covalent phosphoenzyme intermediate formation are crucial parts of the catalytic cycle. At the highly...

