Transcript The Cardiac Cycle

The Cardiac Cycle
David Taylor
[email protected]
http://www.liv.ac.uk/~dcmt
The cardiac cycle
 When you have worked through this you should be
able to
 Describe the changes in pressure and volume in the left
side of the heart during a heat beat.
 Recognise and explain the jugular pulse
 Explain how they relate to the ECG
 Understand the reasons for the first, second and third
hear sounds.
 Revise concepts of preload, afterload and contractility
Video
 There is a video to support this lecture (which you
should study before the lecture!)
 https://stream.liv.ac.uk/s/tvfcau7f
 It is also available with all my other lectures on my
website http://www.liv.ac.uk/~dcmt
 In the text books:
Chapter 18, p. 203 in Preston and Wilson (2013)
Chapter 11, p.523 in Naish and Court (2014)
The cardiac cycle
a
c
v
a, c and v are the
waves of the jugular
pulse
The ECG and ventricular volume
The ECG and ventricular pressure
The cardiac cycle