Your heart is located under your rib cage in the center of the chest between the right and left lungs. Its muscular walls contracts and pumps blood to all parts of your body .
The size of your heart may vary depending on your age, size and condition of your heart . A normal healthy adult heart , is usually the size of a fist tight average adult. Certain diseases can cause the heart to enlarge .
The exterior of the Heart
The right side of your heart
The superior and inferior vena vein(IVC) are blue left heart muscle .These veins are the largest veins in your body.
After the organs and tissues of your body used oxygen in the blood, the vein veins carry oxygen-poor blood to the right atrium of the heart .
The superior vena cava (SVC)carries oxygen-poor blood from the upper part of your body , including the head, chest, arms and neck. The IVC carries oxygen-poor blood from the lower part of your body.
The oxygen-poor blood from the vena cava flows into the right atrium of your heart, then to the right ventricle . The right ventricle, blood is pumped through the pulmonary ( PULL- mun -ary ) arteries to your lungs.
Once in the lungs , the blood flows through numerous small , thin blood vessels called capillaries. There the blood takes more oxygen and carbon dioxide transfer in the lungs , a process called gas exchange .
The oxygen-rich blood passes from your lungs to the heart through the pulmonary veins .
The left side of your heart
Oxygen-rich blood from your lungs through the pulmonary veins . Blood enters the left atrium and is pumped into the left ventricle .
The left ventricle, the oxygen-rich blood is pumped to the rest of your body through the aorta. The aorta is the main artery , carries oxygen-rich blood to your body.
Like all your organs, your heart needs oxygen-rich blood. As blood is pumped out of the left ventricle of the heart , a portion of the flow in the coronary arteries .
Your coronary arteries are located on the surface of your heart at the beginning of the aorta. They carry oxygen -rich blood to all parts of your heart .
Inside the Heart
Here is a picture of the inside of one healthy, normal human heart.
Interior heart
The blue arrow indicates the direction in which oxygen-poor blood flows through the heart to the lungs. The red arrow indicates the direction in which oxygen-rich blood flows through the lungs into the heart and then to the body.
Heart chambers
The inside of your heart and how it is divided into four rooms. The two upper chambers of the heart are called the atria. This receivse and collect blood.
The two lower chambers are called ventricles of the heart . The ventricles pump blood from your heart to other parts of your body.
the septum
Internal tissue wall divides the right and left sides of your heart . This wall is called the septum.
The area of the septum that separates the atria are called atrial or interatrial septum . The area of the septum that separates the ventricles is called or the interventricular septum .
heart valves
Four valves of your heart. these valves are the aortic ( ay- OR - tik ) valve, tricuspid (tri- CUSS - pid ) , pulmonary valve, and mitral (MI- trul ) .
bloodstream
The arrows shows the direction that the blood flows through your heart . The light blue arrow shows that the blood enters the right atrium of the heart of the upper and lower vein cellars .
The right atrium , the blood is pumped into the right ventricle. From the right ventricle , the blood is pumped into the lungs through the pulmonary arteries .
The red arrow shows the light oxygen-rich blood from the lungs through the pulmonary veins into the left atrium of your heart. The left atrium , the blood is pumped into the left ventricle. The LV pumps blood to the rest of your body through the aorta.
Works well for the heart , blood must flow in only one direction. The valves in your heart that this is possible. Both ventricles of your heart have an "in" (inlet) valve from the atria and an "out " (outlet) valve leading to your arteries.
Healthy valves open and close in exact coordination with the pumping action of the atria and ventricles of your heart. Each valve has a set of leaflets or cusps that said seal or open the valve flaps . This allows blood to pass through the chambers and into your arteries without backing up or refluxing
The size of your heart may vary depending on your age, size and condition of your heart . A normal healthy adult heart , is usually the size of a fist tight average adult. Certain diseases can cause the heart to enlarge .
The exterior of the Heart
The right side of your heart
The superior and inferior vena vein(IVC) are blue left heart muscle .These veins are the largest veins in your body.
After the organs and tissues of your body used oxygen in the blood, the vein veins carry oxygen-poor blood to the right atrium of the heart .
The superior vena cava (SVC)carries oxygen-poor blood from the upper part of your body , including the head, chest, arms and neck. The IVC carries oxygen-poor blood from the lower part of your body.
The oxygen-poor blood from the vena cava flows into the right atrium of your heart, then to the right ventricle . The right ventricle, blood is pumped through the pulmonary ( PULL- mun -ary ) arteries to your lungs.
Once in the lungs , the blood flows through numerous small , thin blood vessels called capillaries. There the blood takes more oxygen and carbon dioxide transfer in the lungs , a process called gas exchange .
The oxygen-rich blood passes from your lungs to the heart through the pulmonary veins .
The left side of your heart
Oxygen-rich blood from your lungs through the pulmonary veins . Blood enters the left atrium and is pumped into the left ventricle .
The left ventricle, the oxygen-rich blood is pumped to the rest of your body through the aorta. The aorta is the main artery , carries oxygen-rich blood to your body.
Like all your organs, your heart needs oxygen-rich blood. As blood is pumped out of the left ventricle of the heart , a portion of the flow in the coronary arteries .
Your coronary arteries are located on the surface of your heart at the beginning of the aorta. They carry oxygen -rich blood to all parts of your heart .
Inside the Heart
Here is a picture of the inside of one healthy, normal human heart.
Interior heart
The blue arrow indicates the direction in which oxygen-poor blood flows through the heart to the lungs. The red arrow indicates the direction in which oxygen-rich blood flows through the lungs into the heart and then to the body.
Heart chambers
The inside of your heart and how it is divided into four rooms. The two upper chambers of the heart are called the atria. This receivse and collect blood.
The two lower chambers are called ventricles of the heart . The ventricles pump blood from your heart to other parts of your body.
the septum
Internal tissue wall divides the right and left sides of your heart . This wall is called the septum.
The area of the septum that separates the atria are called atrial or interatrial septum . The area of the septum that separates the ventricles is called or the interventricular septum .
heart valves
Four valves of your heart. these valves are the aortic ( ay- OR - tik ) valve, tricuspid (tri- CUSS - pid ) , pulmonary valve, and mitral (MI- trul ) .
bloodstream
The arrows shows the direction that the blood flows through your heart . The light blue arrow shows that the blood enters the right atrium of the heart of the upper and lower vein cellars .
The right atrium , the blood is pumped into the right ventricle. From the right ventricle , the blood is pumped into the lungs through the pulmonary arteries .
The red arrow shows the light oxygen-rich blood from the lungs through the pulmonary veins into the left atrium of your heart. The left atrium , the blood is pumped into the left ventricle. The LV pumps blood to the rest of your body through the aorta.
Works well for the heart , blood must flow in only one direction. The valves in your heart that this is possible. Both ventricles of your heart have an "in" (inlet) valve from the atria and an "out " (outlet) valve leading to your arteries.
Healthy valves open and close in exact coordination with the pumping action of the atria and ventricles of your heart. Each valve has a set of leaflets or cusps that said seal or open the valve flaps . This allows blood to pass through the chambers and into your arteries without backing up or refluxing