From the lungs, blood drains into the left atrium and is then pumped into the left ventricle. The left ventricle then pumps this oxygen-rich blood out into the aorta which then distributes it to the rest of the body through other arteries. The heart is a hollow, muscular organ; its job is to pump blood through a network of blood vessels. The vessels form a circle, which starts at the heart, goes out through the body, then ends back at the heart again. The heart has two sides, the right and the left side.
These four chambers are separated from each by various valves. The tricuspid valve separates the right atrium and right ventricle and the mitral separates the left atrium and left ventricle. Two valves separate the ventricles and the large blood vessels. The aortic valves separates the left ventricle and the aorta and the pulmonic valve which separates the pulmonary artery and the right ventricle. The blood vessels are a intricate network of tubes that transport blood throughout the body.
The air we breathe in that is held in the lungs is transferred through the blood and the heart is involved with blood circulation where oxygenated blood is pumped from the lungs to the rest of the body. These two systems also work together to remove metabolic waste such as carbon dioxide. The heart is the main site these two systems work together. The heart consists of 2 atria and 2 ventricles. The right ventricle and atrium are responsible for receiving blood from veins.
The lungs add oxygen to the blood and remove carbon dioxide. Then the left side is responsible for accepting blood from the lungs and pumping it back out into the body. Think of it like a cycle where blood flows like this: From the body into the top right chamber (right atrium) -- down into the bottom right chamber (right ventricle) -- out to the lungs -- back to the top left chamber (left atrium) -- down to the bottom left chamber (left ventricle) -- then out to the body. The heart is innervated by the autonomic nervous system, but it also has its own system to generate electrical impulses that stimulate cardiac muscle to contract. These electrical impulses can be recorded in an ECG (electrocardiogram) and used to detect problems with the heart.
The capillaries are part of the cardiovascular system. The oxygen binds with the haemoglobin, which is a red pigment located in the red blood cells. The oxygen is transported to the pulmonary veins and oxygenated blood is pumped to the left side of the heart. From the left ventricle, the oxygenated blood is pumped through the aorta, travels to smaller arteries until it reaches the capillaries. The oxygen from the oxygenated blood moves out from the capillaries and travels to the cells of the body.
Capillaries or small blood vessels surround the alveoli, and the blood picks up oxygen from the inhaled air. These capillaries also allow the blood to release its carbon dioxide, which is exhaled. The breathing process is made by the diaphragm, which is a strong muscle under the lungs. During inhalation, the diaphragm and rib cage expand the chest cavity, causing the lungs to suck in fresh oxygen. During exhalation the diaphragm relaxes and the muscle of the rib cage, are allowing the lungs to release air.
The respiratory system is a complex organ structure of the human body anatomy, and the primary purpose of this system is to supply the blood with oxygen in order for the blood vessels to carry the precious gaseous element to all parts of the body to accomplish cell respiration. The respiratory system completes this important function of breathing throughout inspiration. In the breathing process inhaling oxygen is essential for cells to metabolize nutrients and carry out some other tasks, but it must occur simultaneously with exhaling when the carbon dioxide is excreted, this exchange of gases is the respiratory system's means of getting oxygen to the blood (McGowan, Jefferies &ump; Turley, 2004). To explain normal functioning of the respiratory system, it is best to know that the respiratory system in human beings is comprised of the upper respiratory tract that consists of the nasal passages, pharynx and the larynx. The lower respiratory tract is composed of the trachea, the primary bronchi and the lungs.
Once the capillaries have delivered their oxygen, they also absorb excess carbon dioxide into the blood and then deliver it to the veins, which then supply the blood back to the heart. The respiratory system is primarily comprised of the airways, the lungs and the structures (such as muscles) that help move air in and out of the lungs. The airway, which begins with the nose and mouth, continues down through the throat into the bronchi, which are small airways that eventually feed into the lungs, which are lined with cells called alveoli. The other part of the respiratory system is the muscles, such as the intercostals (muscles between the ribs) and the diaphragm, which cause the lungs to expand and contract. When the size of the lungs changes, so does the pressure inside, leading to air either coming in (inhalation) or being forced out (exhalation).
Ventricle pumps blood into PULMONARY trunk (almost immediately branches into the pulmonary arteries), which carries deoxygenated blood to the lungs away from the heart. 5) Blood becomes OXYGENATED in the lungs, and then travels to LEFT ATRIUM in PULMONARY VEIN (carries oxygenated blood towards heart). 6) From the LEFT ATRIUM, blood passes through bicuspid valve into the LEFT VENTRICLE 7) REPEAT!! * As blood flows away from the heart, it transported to the body’s organs and tissues in relatively large vessels. * HEART ARTERIES ARTERIOLES CAPILLARIES VENULES VEINS 3.
Furthermore they diffuse through plasma membranes of red blood cells and bind to the haemoglobin. By the cardiac cycle, oxygen gets transported to cells all over the body, where it’s used for aerobic respiration. One of the products during respiration is carbon dioxide. It is diffused in blood plasma and also transported by the cardiac cycle, back to the lungs. There the carbon dioxide will diffuse down the concentration gradient through endothelial cells in capillaries