Indicate the proper order of events during the cardiac cycle by placing numbers in the blanks preceding the events in sequence. (Some steps may have been omitted.) The first event is labeled as your starting point. 1 AV valve open; aortic valve closed; ventricular filling occurring Blood ejected from the ventricles Isovolumetric ventricular relaxation Atrial contraction AV valve opens; ventricular filling occurs again; one cardiac cycle is complete Aortic valve opens SA node discharges Ventricular filling complete Ventricular relaxation begins Aortic valve closes Isovolumetric ventricular contraction Ventricular contraction begins; AV valve closes
Added by Sheri G.
Close
Step 1
SA node discharges Show more…
Show all steps
Your feedback will help us improve your experience
Suman K and 65 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
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
Sri K.
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.
During the cardiac cycle, the stage that immediately follows atrial systole is _______. a. atrial diastole b. ventricular systole c. ventricular diastole d. whole heart diastole
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