functions of the heart and blood vessels
The heart is a muscular organ that pumps blood to all the tissues in your body
through a network of blood vessels. The right side of the heart pumps blood
through the lungs where it picks up oxygen. The left side of the heart receives
the blood containing oxygen and pumps the blood to the rest of your body.
The heart is divided into two sides each side is divided again into two chambers
the atrium upper chamber and ventricle lower chamber blood vessels
veins carry blood to the heart from the rest of the body this blood carries
carbon dioxide, the blood goes into the right atrium
and then to the right ventricle where it is then pumped to the lungs to dispose
of wastes and receive a fresh oxygen supply from the lungs the blood returns to
the heart. It returns to the left atrium and then to the left ventricle the blood
is then pumped out of the heart by the left ventricle into the aorta, the left
ventricle is the chamber of the heart that is responsible for pumping blood to
all parts of the body the aorta sends this blood to small arteries, which carry
the oxygenated blood to the rest of the body.
Blood Flow through the heart:
The right side:
-The heart is relaxed and de-oxygenated blood enters the heart by the venae carve
-Blood then enters te right artium
-The right artium contracts and pushes the blood down through the tricuspid valve and into the right ventricle
-The right ventricle then contracts, the tricuspid valve then closes and the blood is pushed up and out of the heart through the semilunar valve and into the pulmonary artery, which takes the blood to the lungs
-The heart relaxes and the semilunar valves close to prevent blood flowing back into the heart
-The blood then goes to the lungs where it becomes oxygenated and ready to go to thee heart for distribution around the body.
The left side:
-When the haert is relaxed, oxygenated blood from the lungs enters through the pulmonary vein
-Blood then enters the left atria
-the left atria contracts and pushes blood down through bicuspid valve and into the left venticle
-the left ventricle contracts and the bicuspid valve closes, blood is then pushed up and out the heart through the semilunar valve, then into the aorta
-The heart relaxes and the semilunar valve closes and prevents blood flowing back into the heart
.
through a network of blood vessels. The right side of the heart pumps blood
through the lungs where it picks up oxygen. The left side of the heart receives
the blood containing oxygen and pumps the blood to the rest of your body.
The heart is divided into two sides each side is divided again into two chambers
the atrium upper chamber and ventricle lower chamber blood vessels
veins carry blood to the heart from the rest of the body this blood carries
carbon dioxide, the blood goes into the right atrium
and then to the right ventricle where it is then pumped to the lungs to dispose
of wastes and receive a fresh oxygen supply from the lungs the blood returns to
the heart. It returns to the left atrium and then to the left ventricle the blood
is then pumped out of the heart by the left ventricle into the aorta, the left
ventricle is the chamber of the heart that is responsible for pumping blood to
all parts of the body the aorta sends this blood to small arteries, which carry
the oxygenated blood to the rest of the body.
Blood Flow through the heart:
The right side:
-The heart is relaxed and de-oxygenated blood enters the heart by the venae carve
-Blood then enters te right artium
-The right artium contracts and pushes the blood down through the tricuspid valve and into the right ventricle
-The right ventricle then contracts, the tricuspid valve then closes and the blood is pushed up and out of the heart through the semilunar valve and into the pulmonary artery, which takes the blood to the lungs
-The heart relaxes and the semilunar valves close to prevent blood flowing back into the heart
-The blood then goes to the lungs where it becomes oxygenated and ready to go to thee heart for distribution around the body.
The left side:
-When the haert is relaxed, oxygenated blood from the lungs enters through the pulmonary vein
-Blood then enters the left atria
-the left atria contracts and pushes blood down through bicuspid valve and into the left venticle
-the left ventricle contracts and the bicuspid valve closes, blood is then pushed up and out the heart through the semilunar valve, then into the aorta
-The heart relaxes and the semilunar valve closes and prevents blood flowing back into the heart
.