Question

What causes blood to flow through the heart?

Answer 1

Blood flows through our heart because of the Right and left side of our heart works in a specific pattern.

Explanation:

The Process of blood passage throughout our heart-

Right Side-

1) Blood enters the heart through two large veins. They are -Inferior vena cava and Superior vena cava. Which emties Oxygen poor blood into the Right atrium of heart.

2) Now, as the atrium contracts blood flows from right atrium into your right ventricle through the open tricuspid valve.

3) When the ventricle is full, the tricuspid valve shuts.
This prevents blood from flowing backward into the atria while the ventricle contracts.

4) As the ventricle contracts blood leaves the heart through the pulmonic valve into the pulmonary artery and to the lungs where it is oxygenated.

Left Side -

1) The pulmonary vein empties oxygen-rich blood from the lungs into the left atrium of the heart.

2)As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.

3) When the ventricle is full, the mitral valve shuts.
This prevents blood from flowing backward into the atrium while the ventricle contracts.

4) As the ventricle contracts blood leaves the heart through the aortic valve, into the aorta and to the body.