The heart - structure, cardiac cycle and pressure changes

A comprehensive worksheet aimed at Advanced Biology students that deals with the fundamentals of heart structure and function. The worksheet begins with a simple labelling task of the heart, followed by questions on its structure and layout. The worksheet then moves on to a sequencing task which requires ordering of the vents of the cardiac cycle. Finally, there is a series of questions that require students to identify the reasons for valves opening and closing during the cardiac cycle.

Two additional worksheets are also included which provides a shorter, edited format more useful as a short starter activity and a worksheet that includes a pressure change graph for students to reference when they complete the activity on valves opening and closing.

Key words: cardiac, heart, structure, atria, ventricles, valves, cycle, pressure