doc, 86.5 KB
doc, 86.5 KB
A resource aimed at Advanced Biology students, this worksheet provides a list of questions related to understanding the events of the cardiac cycle. The questions focus on the characteristic pressure change graph that shows AV valves and semi-lunar valves opening and closing as pressure of blood between artery, atria and ventricles changes. Students often struggle to articulate the difference in pressure as the cause of valves opening and closing; these questions will help to reinforce key concepts.

Key words: artery, ventricle, atria, semi-lunar, atrio-ventricular, pressure

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