Cardiac cycle: Heart sounds, Apex beat, Blood pressure, Cardiac action potential, Cardiac muscle, Cardiac output, Electrocardiography, Heart, Ventricle (heart) - Couverture souple

Couverture souple

ISBN 10 : 6130201575 ISBN 13 : 9786130201579

Editeur : Alphascript Publishing, 2010

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Cardiac cycle is the term referring to all or any of the events related to the flow or blood pressure that occurs from the beginning of one heartbeat to the beginning of the next. The frequency of the cardiac cycle is the heart rate. Every single beat of the heart involves five major stages: First, Late diastole which is when the semilunar valves close, the Av valves open and the whole heart is relaxed. Second, Atrial systole when atria is contracting, AV valves open and blood flows from atrium to the ventricle. Third, Isovolumic ventricular contraction it is when the ventricles begin to contract, AV valves close, as well as the semilunar valves and there is no change in volume. Fourth, ventricular ejection, Ventricles are empty, they are still contracting and the semilunar valves are open. The fifth stage is: Isovolumic ventricular relaxation, Pressure decreases, no blood is entering the ventricles, ventricles stop contracting and begin to relax, semilunars are shut because blood in the aorta is pushing them shut. Throughout the cardiac cycle, the blood pressure increases and decreases

Détails de l'édition

• Éditeur: Alphascript Publishing
• Date d'édition: 2010
• Langue: anglais
• ISBN 10: 6130201575
• ISBN 13: 9786130201579
• Reliure: Broché
• Nombre de pages: 68
• Éditeur: Miller Frederic P., Vandome Agnes F., McBrewster John
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible