Question 1
The left ventricular wall of the heart is thicker than the right wall in order to ________.
◦ pump blood with greater pressure
◦ accommodate a greater volume of blood
◦ pump blood through a smaller valve
◦ expand the thoracic cage during diastole
Question 2
Damage to the ________ causes heart block.
◦ bundle branches
◦ atrioventricular (AV) valves
◦ sinoatrial (SA) node
◦ atrioventricular (AV) node