0 votes
917 views
in Biology Form 2 by

7 Answers

0 votes
by
It has septum which prevents oxygenated blood from mixing with deoxygenated blood
0 votes
by
Has valves to prevent back flow of blood 
0 votes
by
Has tendons which hold valves in place and prevent inversion of valves
0 votes
by
Has a layer of fat which acts as a shock absorber.                                                        _Has semilunar valves which prevents back flow of blood into the ventricles when the ventricles contracts 
0 votes
by
-The heart has a pericardium membrane which is translucent that encloses the heart .
-It secretes a pericardial fluid which lubricates the heart .
-It has a fatlayer which acts as a shock absorber
-It has a coronary artery that supply oxygen likewise it has a coronary vein to carry away CO2 and other waste materials
-It has a thick mascular wall know as the septumthat prevents oxygenated blood from mixing with deoxygenated blood 
-It has a thick ventricle that generates pressure to pump blood to all parts of the body
-It has cap like structures known as valves which prevent the back flow of blood and has tendons which prevent them from turning inside out
-the heart has a special muscle known as the cardiac muscle which functions without fatigue
-the heart is myogenic meaning it does not function under nervous stimulation
-the heart heart has a pacemaker or sinoatrial node which initiates heartbeat
-It has a vagus nerve which slows down heart beat similarly it has a sympathetic nerve which speeds up heart beat.
0 votes
by
-The heart has a pericardium membrane which is translucent that encloses the heart .
-It secretes a pericardial fluid which lubricates the heart .
-It has a fatlayer which acts as a shock absorber
-It has a coronary artery that supply oxygen likewise it has a coronary vein to carry away CO2 and other waste materials
-It has a thick mascular wall know as the septumthat prevents oxygenated blood from mixing with deoxygenated blood 
-It has a thick ventricle that generates pressure to pump blood to all parts of the body
-It has cap like structures known as valves which prevent the back flow of blood and has tendons which prevent them from turning inside out
-the heart has a special muscle known as the cardiac muscle which functions without fatigue
-the heart is myogenic meaning it does not function under nervous stimulation
-the heart heart has a pacemaker or sinoatrial node which initiates heartbeat
-It has a vagus nerve which slows down heart beat similarly it has a sympathetic nerve which speeds up heart beat.
0 votes
by
Muscular to pump blood over long distances.
Has 4 chambers which are hollow to accommodate more blood.
Has Coronary artery and vein to supply the heart with O2 and nutrients; remove waste products.
Has a fibrous layer of pericardium to prevent over dilation and keep the heart in position.
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.

6.4k questions

9.6k answers

6 comments

590 users

...