Question

What is the description of blood flow to and from the body?

Answer 1

The blood flow to and from the body:

Blood enters the heart through two large veins,the inferior and superior vena cava,emptying oxygen-poor blood from the body into the right atrium.

• As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve.
• When the ventricle is full, the tricuspid valve shuts. This prevents blood from flowing backward into the atria while the ventricle contracts.
• As the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.
• The pulmonary vein empties oxygen-rich blood from the lungs into the left atrium of the heart.
• As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.
• When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts.
• As the ventricle contracts, blood leaves the heart through the aortic valve,into the aorta and to the body.