Topic 3- Walls of the heart

Question 1

The muscular walls of the 1._____ are thinner than those of the 2._____

Answer 1

1. atria
   2.ventricles

Question 2

When the 1.____ contract, the thin muscular walls do not generate much pressure, but enough to force blood 2.____ into the 3.______, through the atrioventricular valves
Following contraction of the atria, the ventricles contract and squeeze blood 4.___, increasing its pressure and pushing it out of the heart through right and left 5.____ valves

Answer 2

1.atria
2.down
3. ventricles
4. inwards
5.semilunar

Question 3

Which ventricler has significantly thicker muscle? Why?

Answer 3

-Left
-blood leaving the right ventricle travels less distance