The Cardiac Cycle - The Cardiac Cycle ,through .Acontraction event()is referredtoassystole,andarelaxation e

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
The Cardiac Cycle The cardiac cycle describes all the  activities of the heart through one  complete heartbeat—that is, through  one contraction and relaxation of both  the atria and ventricles. A contraction  event (of either the atria or ventricles) is  referred to as systole,  and a relaxation  event is referred to as  diastole.  The  cardiac cycle includes a description of  the systolic and diastolic activities of the  atria and ventricles, the blood volume  and pressure changes within the heart,  and the action of the heart valves. A 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
description of each period of the  cardiac cycle follows: The isovolumetric ventricular  relaxation is the period during  which the ventricles are relaxed  and both AV and semilunar  valves are still closed. The  volume of the ventricles remains  unchanged (isovolumetric) during  this period. Ventricular filling begins as the 
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

Page1 / 7

The Cardiac Cycle - The Cardiac Cycle ,through .Acontraction event()is referredtoassystole,andarelaxation e

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online