An infection including viruses or bacteria
Answer:
The answer is D because it is behind your sternum
Explanation:
It should be around 220 bpm minus the persons age
Answer:
The normal heart has 4 chambers that undergo the squeeze and relax cycle at specific time intervals that are regulated by a normal sequence of electrical signals that arise from specialized tissue
Answer:
The human circulatory system circulates blood through two loops (double circulation) – One for oxygenated blood, another for deoxygenated blood. The human heart consists of four chambers – two ventricles and two auricles. The human circulatory system possesses a body-wide network of blood vessels. These comprise arteries, veins
Explanation:
