71210 Bioelectromagnetism - Exercises Autumn 2004

Heart

1. The left ventricular free wall and the septum are thicker than the right ventricular wall. This is because
   1. pulmonary blood pressure is higher than systemic
   2. systemic blood pressure is higher than pulmonary
   3. the left ventricle was developed prior to the right ventricle
2. What is systole?
   1. The period of time in which the valves are closed
   2. The period of time in which the valves are opened
   3. The period of muscular contraction in which blood is pumped out of the heart
   4. The period of muscular relaxation in which blood is filled in the chamber.
3. Cardiac muscle cells are joined by ___________ that permit activation propagation from cell to cell
   1. striations
   2. gap junctions
   3. action impulses
   4. the boundary between the atria and ventricles
4. Specialized pacemaker cells are
   1. located in the AV node
   2. located in the SA node
   3. are able to generate intrinsic action impulses
   4. can be triggered externally
   5. all of the above
5. ________________ is a propagating wave
   1. Repolarization
   2. Depolarization

Show correct answers

Back to exercises page