<span>The electrical stimulus in the heart begins in the APEX OF THE ATRIA at the SINOATRIAL NODE. The heart has its own electrical conduction system that enables it to work as a unit and supply oxygenated blood throughout the body. This system needs to work in a sequential manner so that the delivery of unoxygenated blood to the lungs will not backflow to other parts of the heart and the body. </span>
1. slow down his body after exercise
2. rest between heart beats
3. how intense the exercise is
4. physically fit
Genetic is hereditary, meaning that your DNA carries ths genetic inheritance for a disease. Now some diseases are lifestyle factors, such as lung cancer for a smoker and things of the like. If you need specific diseases to choose from, let me know :)
Answer:
The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).
Explanation:
