Describe the cardiac cycle

Diastole - relaxation of the atria and ventricles means lower pressure within the heart, this causes blood to passively flow through the atria and into ventricles. AV valves are open therefore allowing blood from atria to ventricles but semilunar valves are closed.Systole - during atrial systole the atria contract and force blood into the ventricles. Ventricular systole then occurs where the ventricles contract, AV valves contract , semilunar valves open and blood is pushed out of the ventricles and into the arteries leaving the heart.

BC
Answered by Ben C. Physical Education tutor

4185 Views

See similar Physical Education A Level tutors

Related Physical Education A Level answers

All answers ▸

Explain (using a sport of your choice) which physiological aids would be most beneficial to a performer.


The diagram below shows a spirometer trace of an athlete at rest. Complete the table to identify the type of lung volumes A,B and C show in the diagram.


Explain how a figure skater controls angular velocity when performing a multiple spin about the longitudinal axis.


What are the stages in the conduction of a cardiac impulse?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences