WebApr 5, 2024 · Heart Anatomy Heart Wall. Epicardium: The outer layer of the wall of the heart. Myocardium: The muscular middle layer of the wall of... Cardiac Conduction. Cardiac conduction is the rate at which the heart … WebThe heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the …
Anatomy and Physiology of the Heart human by Science and Stories
WebAs your heart pumps blood, four valves open and close to make sure blood flows in the correct direction. As they open and close, they make two sounds that create the sound of a heartbeat. The four valves are the … WebApr 29, 2024 · The human heart is primarily comprised of four chambers. The two upper chambers are called the atria, the remaining two lower chambers are the ventricles. The … philosophy emulsion lotion spray
4 Heart Valves: What They Are and How They Work
WebThe heart beats at an average rate of 80 times a minute. That's about 115,000 times in one day, or about 42 million times in a year. In a 70-year lifetime, an average human heart will beat more than 2.5 billion times. The heart works hard even when you are at rest. The average heart rate for children 10 years and older and adults is 60 to 100 ... WebApr 7, 1997 · Your heart is an extraordinary biological machine. In a single day, it beats roughly 100,000 times, pumping blood throughout your body. In this animated interactive, explore the anatomy of the ... WebThe electrical stimulus travels down through the conduction pathways and causes the heart's ventricles to contract and pump out blood. The 2 upper chambers of the heart (atria) are stimulated first and contract for a short … philosophy empiricism