Why does the electrical impulse that simulates heart contraction first travel down to the bottom of the heart, and then stimulates contraction from the bottom of the ventricles upwards?


Libtards and libertarians



This happens to squeeze out blood completely, else the heart may not function properly


The electrical impulses are carried by bundle of His and send to the bottom of the heart via purkyne fibers. This happens in order to spread the impulse from the atrio-ventricular node to the sides of the ventricles. Now in the next round of impulse causes the ventricles to contract and squeeze out all the blood from the ventricles. If this does not happen then the heart will not be able to perform to its full capacity. Atria may also not release its entire blood into the ventricles.  

Do you know the answer?

Other questions on the subject: Biology

Biology, 22.06.2019, latoyatuggle23
It would be expected that these codons encode for identical or similar (e.g., equivalent) amino acids.  Explanation:These hemoglobins represent homologous proteins, this means that...Read More
1 more answers
Biology, 22.06.2019, hrijaymadathil
According to the graph information you have provided, it can bee seen that stabilizing selection is occurring because the average is favored.Explanation:In case of stabilizing sele...Read More
2 more answers