The Muscle That Matters The Most - Heart
The heart is essentially a muscular pump which pushes oxygen and nutrients around the body to the tissues. Human heart is about the size of a man’s clenched fist and lies behind the sternum.
The heart is made up of thick muscular walls and is divided into two separate halves. The right half pumps blood to the lungs and the left pumps blood to the rest of your body.
Human heart function
The heart circulates blood through two pathways: the pulmonary circuit and the systemic circuit.
In the pulmonary circuit, deoxygenated blood leaves the right ventricle of the heart via the pulmonary artery and travels to the lungs, then returns as oxygenated blood to the left atrium of the heart via the pulmonary vein.
In the systemic circuit, oxygenated blood leaves the body via the left ventricle to the aorta, and from there enters the arteries and capillaries where it supplies the body's tissues with oxygen. Deoxygenated blood returns via veins to the vena cavaand reentering the heart's right atrium.
Human Heart Facts:
• A newborn baby hearts beat faster than a adult hearts
• The heart pumps about 5.7 Liters of blood throughout the whole human body
• The heart is located in the left side of your chest
• The heart beats about 100,000 times per day
• Human heart is about the size of a man fist
List of thing you could do to help prevent heart disease:
• Get active
• Eat healthy
• Stop smoking and stay away from secondhand smoke
• Control your cholesterol and blood pressure level
• Avoid alcohol
• Manage stress level