Describe the role of each of the following structures in the human heart: sinoatrial node (SAN).
Describe the role of each of the following structures in the human heart: atrioventricular node (AVN).
Describe the role of each of the following structures in the human heart: left atrioventricular (bicuspid) valve.
Fig. 2.1 illustrates how blood pressure in the left atrium, left ventricle and aorta varies through one complete cardiac cycle. Fill in the table below with the correct letter, A to H, to match each graph point with the right statement. Put only one letter in every box. A letter may be used once, more than once or not at all. Statements: - left atrioventricular (bicuspid) valve begins to open - left atrioventricular (bicuspid) valve begins to close - left ventricle begins to contract - least blood remaining in left ventricle