Name the blood vessel that brings oxygenated blood to the human heart

Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works. Overview What is the heart? The heart is a fist-sized organ that pumps blood throughout your body. It's the primary organ of your circulatory system. Your heart contains four main sections (chambers) made of muscle and powered by electrical impulses. Your brain and What does a heart diagram look like? The inside and outside of your heart contain components that direct blood flow: Inside of the Heart Outside of the Heart Function What is the heart’s function? Your heart’s main function is to move blood throughout your body. Your heart also: • Controls the rhythm and speed of your • Maintains your How does your heart work with other organs ? Your heart works with other body systems to control your heart rate and other body functions. The primary systems are: • Nervous system: Your • Endocrine system: Your Anatomy Where is your heart located? Your heart is located in the front of your chest. It sits slightly behind and to the left of your sternum (breastbone). Your ribcage protects your heart. What side is your heart on? Your heart is slightly on the left side of your body. It sits between your right and left How big is your heart? Everyone’s heart is a slightly different s...

Overview What are blood vessels? Blood vessels are channels that carry blood throughout your body. They form a closed loop, like a circuit, that begins and ends at your heart. Together, the There are three types of • Arteries carry blood away from your heart. • Veins carry blood back toward your heart. • Capillaries, the smallest blood vessels, connect arteries and veins. How does blood flow through your body? Here’s • Veins bring blood to the right side of your heart. • • Pulmonary veins move the blood oxygen-rich blood to the left side of your heart. • The • Capillaries have thin walls that allow oxygen, nutrients, carbon dioxide and waste products to pass through, to and from the tissue cells. • Veins then carry the blood back to your heart, and the process begins again. Function What is the purpose of blood vessels? The function of blood vessels is to deliver blood to the organs and tissues in your body. The blood supplies them with the oxygen and nutrients they need to function. Blood vessels also carry waste products and carbon dioxide away from your organs and tissues. Each type of blood vessel serves a different function: • Arteries: These strong, muscular blood vessels carry oxygen-rich blood from your heart to your body. They handle a large amount of force and pressure from your blood flow but don’t carry a large volume of blood. At any given time, only about 10% to 15% of your body’s blood is in your arteries. • Arterioles: Arteries branch into smaller vessels c...

• Your heart pumps about • It’s estimated that in a 70-year period, your heart will beat • In most adult humans, a normal resting heart rate is • The total length of all of the blood vessels in your body is • Capillaries are your most numerous blood vessels and also the smallest. Red blood cells often have to move through the capillaries in single-file. • Your blood pressure changes throughout the day. It’s lowest when you’re asleep, and it peaks in the middle of the afternoon. Your circulatory system is vital to your survival. Its function is to distribute blood and other nutrients to all your body’s organs and tissues. The small blood vessels called capillaries facilitate the exchange of oxygen and nutrients between your blood and the cells in your body. Carbon dioxide and other waste products, which are expelled from your body, are also exchanged via your capillaries. These tiny capillaries are spread throughout your body so that they can reach every cell. Let’s follow the blood on a simple loop through the circulatory system to see how it works: • Oxygen-depleted blood returns to your • Your heart pumps this blood to the • Newly oxygenated blood returns to the other side of the heart (the left side), where it’s then pumped into the arteries. • Eventually, the blood enters the capillaries. Here, it releases oxygen and nutrients to your body’s organs and tissues. It then picks up carbon dioxide and other waste products. • The oxygen-depleted blood returns to the heart th...

In this Higher Human Biology revision guide, you will learn in detail that cardiac output is a measure of the rate of blood flow through the heart and its associated blood vessels. You can also revise the blood vessels leading into and out of the heart, the cardiac conduction system, and autonomic and hormonal control. Blood vessels leading into and out of the heart There are four main blood vessels that take blood into and out of the heart. • the aorta is the largest artery in the body. It carries oxygenated blood away from the left ventricle to the body • the vena cava is the largest vein in the body. It carries deoxygenated blood from the body back to the heart • the pulmonary artery carries deoxygenated blood away from the right ventricle to the lungs • the pulmonary vein returns oxygenated blood from the lungs to the heart Arteries carry oxygenated blood away from the heart (except for the pulmonary artery which carries deoxygenated blood away from the right ventricle to the lungs). The main artery is the aorta . The main vein is the vena cava .

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How Does the Heart Work? As the Blood is essential. In addition to carrying fresh oxygen from the There are three main types of blood vessels: • Arteries . They begin with the • Capillaries. These are small, thin blood vessels that connect the arteries and the veins. Their thin walls allow oxygen, nutrients, carbon dioxide, and other waste products to pass to and from our organ's cells. • Veins. These are blood vessels that take blood back to the heart; this blood lacks oxygen (oxygen-poor) and is rich in waste products that are to be excreted or removed from the body. Veins become larger and larger as they get closer to the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the Blood flows continuously through your body's blood vessels. Your heart is the pump that makes it all possible. Where Is Your Heart? The heart is under the rib cage, to the left of your breastbone (sternum) and between your Looking at the outside of the heart, you can see that the heart is made of muscle. The strong muscular walls contract (squeeze), pumping blood to the arteries. The major blood vessels connected to your heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (which takes oxygen-poor blood from the heart to the lungs where it is oxygenated), the pulmonary veins (which bring oxygen-rich blood from the lungs to the heart), and the coronary arteries (which...

As your heart pumps blood, four valves open and close to make sure blood flows in the correct direction. As they open and close, they make two sounds that create the sound of a heartbeat. The four valves are the aortic valve, mitral valve, pulmonary valve and tricuspid valve. A heart murmur is often the first sign of a heart valve problem. Overview The anatomy of your heart includes four chambers. What is a heart valve? Your heart is a muscle that pumps blood throughout your body. Heart valves are parts of your heart that act like doors. They open and close to let blood flow from one area of your heart to another. They help ensure that blood moves at the right time and in the correct direction. As the valves open and close, they create two sounds, which are your heartbeat. The four valves of the heart are: • Aortic valve. • Mitral valve. • Pulmonary valve (or pulmonic valve). • Tricuspid valve. Function How do the heart valves work? A healthy heart transports blood in a predictable route through four chambers. The four chambers are the left and right atria on the top of your heart and the left and right ventricles on the bottom. Between chambers, there are valves, which are made of thin but strong flaps of tissue. They’re called leaflets or cusps. The valves open and close to help blood move along its path: • Blood that needs oxygen flows from your body into the right atrium. • It then flows through the tricuspid valve to the right ventricle. • The right ventricle pumps th...

In this Higher Human Biology revision guide, you will learn in detail that cardiac output is a measure of the rate of blood flow through the heart and its associated blood vessels. You can also revise the blood vessels leading into and out of the heart, the cardiac conduction system, and autonomic and hormonal control. Blood vessels leading into and out of the heart There are four main blood vessels that take blood into and out of the heart. • the aorta is the largest artery in the body. It carries oxygenated blood away from the left ventricle to the body • the vena cava is the largest vein in the body. It carries deoxygenated blood from the body back to the heart • the pulmonary artery carries deoxygenated blood away from the right ventricle to the lungs • the pulmonary vein returns oxygenated blood from the lungs to the heart Arteries carry oxygenated blood away from the heart (except for the pulmonary artery which carries deoxygenated blood away from the right ventricle to the lungs). The main artery is the aorta . The main vein is the vena cava .

Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works. Overview What is the heart? The heart is a fist-sized organ that pumps blood throughout your body. It's the primary organ of your circulatory system. Your heart contains four main sections (chambers) made of muscle and powered by electrical impulses. Your brain and What does a heart diagram look like? The inside and outside of your heart contain components that direct blood flow: Inside of the Heart Outside of the Heart Function What is the heart’s function? Your heart’s main function is to move blood throughout your body. Your heart also: • Controls the rhythm and speed of your • Maintains your How does your heart work with other organs ? Your heart works with other body systems to control your heart rate and other body functions. The primary systems are: • Nervous system: Your • Endocrine system: Your Anatomy Where is your heart located? Your heart is located in the front of your chest. It sits slightly behind and to the left of your sternum (breastbone). Your ribcage protects your heart. What side is your heart on? Your heart is slightly on the left side of your body. It sits between your right and left How big is your heart? Everyone’s heart is a slightly different s...

How Does the Heart Work? As the Blood is essential. In addition to carrying fresh oxygen from the There are three main types of blood vessels: • Arteries . They begin with the • Capillaries. These are small, thin blood vessels that connect the arteries and the veins. Their thin walls allow oxygen, nutrients, carbon dioxide, and other waste products to pass to and from our organ's cells. • Veins. These are blood vessels that take blood back to the heart; this blood lacks oxygen (oxygen-poor) and is rich in waste products that are to be excreted or removed from the body. Veins become larger and larger as they get closer to the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the Blood flows continuously through your body's blood vessels. Your heart is the pump that makes it all possible. Where Is Your Heart? The heart is under the rib cage, to the left of your breastbone (sternum) and between your Looking at the outside of the heart, you can see that the heart is made of muscle. The strong muscular walls contract (squeeze), pumping blood to the arteries. The major blood vessels connected to your heart are the aorta, the superior vena cava, the inferior vena cava, the pulmonary artery (which takes oxygen-poor blood from the heart to the lungs where it is oxygenated), the pulmonary veins (which bring oxygen-rich blood from the lungs to the heart), and the coronary arteries (which...