Compare and contrast systole and diastole
Not what you're looking for?
Compare and contrast atrial and ventricular systole and atrial and ventricular diastole.
Purchase this Solution
Solution Summary
This solution compares and contrasts atrial and ventricular systole and atrial and ventricular diastole.
Solution Preview
Systole refers to a period of contraction by the heart muscle.
Diastole refers to a period of relaxation by the heart muscle.
Diastole = relaxation.
Systole = contraction.
Atrial Systole:
1) Both atria contract and push stored blood via AV (Atrioventricular) valves - The mitral valve & tricuspid valve into ventricles, to help fill them.
2) Volume of atria reduces and pressure increases.
3) Backflow of blood into the vein is prevented by closure of the valves in the veins.
Ventricular Systole:
1) After atria contracts, ventricles begin to contract.
2) Pressure in ventricles increases, blood is forced against AV valves which close to prevent backflow into the Atria, first heart sound.
3) Volume is reduced and blood is ejected through semilunar valves into the aorta on ...
Purchase this Solution
Free BrainMass Quizzes
Labor Comfort Measures
Do you know how to comfort someone in labor?
Identifying Variables in Science Experiments, Part 2
Using sample experiments, test yourself to see if you can identify independent, dependent, and controlled variables. Identifying variables is key in understanding and developing experiments. The questions are biology related, but this can be applied to any area of science.
Vision and Oculomotor Control
This quiz will test the student's knowledge of the neural underpinnings of the visual system and its central pathways.
Birth 101
Do you know about childbirth? Find out with this quiz.
How Much Do You Know About Genetic Inheritance?
Most of us studied the basics of dominant and recessive genes at some point. However, genetics are much more complicated than this. How far beyond the basics does your knowledge go?