Immunohistochemical delineation of the conduction system. II: The atrioventricular node and Purkinje fibers. The spatial arrangement of the Purkinje fibers correlates well with data on electrophysiology. Connexin43 was not detected in the myocytes of the ... PW Oosthoek,Sz. Virágh,WH Lamers,... ...
Briefly describe one example of how the circulatory, respiratory, and digestive systems work together to maintain homeostasis. Describe how the frog's circulatory and digestive systems are connected. Describe how the blood flow of the heart and the conduction system interact with the o...
Excitation-contraction coupling is the process by which an electrical signal (action potential) is converted to a mechanical output (muscle contraction). This process occurs regularly in the body and involves several molecules and steps in order to work efficiently....
Using simple terms, explain how the contraction of the atria and ventricles is controlled by the cardiac conduction system. Are the coronary arteries part of the pulmonary or the systemic circuit? Explain. What are the differences between a vein and an artery? Giv...
True or False: Ventricular fibrillation is a rapid heartbeat with a rate of more than 100 bpm, usually originating in the ventricles. Describe the heartbeat by explaining the cardiac conduction system. Be specific in your response, and describe all phases of...
Describe the similarities and differences between cardiac, smooth and skeletal muscle. Name and briefly explain the properties of a neuron. What ways are neurons similar to other cells? Describe the three general functions of the nervous system. ...
Discuss the cardiac conduction system and automaticity of heart. At the beginning of ventricular diastole, the aortic pressure jumps slightly. What is this called and what is causing it? Explain how damage to the myocardium (myocardial pumping cells) reduces cardiac output. During the cardiac cycle...
Discuss the cardiac conduction system and automaticity of heart. Explain cardiac conduction in the heart. Outline how transmission of electrical impulse with each beat moves through the heart to produce atrial and ventricular contractions Describe the blood pressure differences between the ventricl...