Place the mechanical events of the cardiac cycle in order from the start of an initial atrial systole to the start of the next atrial systole. Initial atrial systole: isovolumetric relaxation, start of atrial diastole and ventricular systole, atrial ejection, start of ventricular diastole, ventricular ejection. Next atrial systole. Answer Bank: isovolumetric contraction
Added by Samantha S.
Close
Step 1
Step 1:** Initial atrial systole ** Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 100 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
During which phase of the cardiac cycle does the first heart sound occur? O Isovolumetric ventricular contraction O Ventricular filling O Isovolumetric ventricular relaxation O Ventricular ejection 2. Which valves are closing at the first heart sound? O Both the mitral and aortic valves O Both the pulmonary and aortic valves O Both the tricuspid and pulmonary valves O Both the tricuspid and mitral valves 3. What causes the second heart sound? O Opening of the tricuspid and mitral valves O Contraction of the ventricles O Closing of the pulmonary and aortic valves O Contraction of the atria
Match the phase of the cardiac cycle with its correct description. Cardiac cycle phase: A) none B) ventricular filling C) isovolumetric contraction D) isovolumetric relaxation E) ventricular ejection Description: 1) All 4 valves of the heart are open. 2) All 4 valves are closed and pressure in the ventricle is decreasing. 3) Ventricular pressure exceeds aortic pressure. 4) Atrial pressure exceeds aortic pressure. 5) AV valves are open and semilunar valves are closed. 6) Semilunar valves are open and AV valves are closed.
Shaiju T.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD