The human heart is one of the most important parts of the human body,
responsible for keeping us alive. The brain and heart work together in perfect harmony
to provide you the best quality of life, especially if you take care of yourself. The heart is
a muscle that pumps your blood throughout your circulatory system, that is set off by
signals sent down from your brain, to tell your heart to beat. Doctors utilize this
heartbeat when taking your vital signs, and to make sure that you are healthy. Your heart
works hard everyday to keep you alive and breathing. Let’s learn how.
Your heart is made up of atriums, ventricles, veins, arteries, and valves. Each one
has a specific name and job to preform to cycle blood through and help it gain oxygen, so
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Once the blood flows through the right atrium, it gets pushed through the
Tricuspid valve, which acts as a brick wall, not allowing blood to enter back into the right
atrium. Once the blood reaches the right ventricle, it gets pushed up and through the
pulmonary semilunar valve. The blood exits through the pulmonary artery into the left
and right long. Then, while in the lungs, the deoxygenated blood gains oxygen and enters
back into the heard through the pulmonary veins. After it comes through the veins, the
oxygen rich blood enters the left atrium and gets pushed through the bicuspid (mitral)
valve into the left ventricle. Once in the left ventricle, the blood flows up through the
aortic valve and into the aorta. Once in the aorta, the blood gets distributed throughout
the body as it leaves the heart through veins, capillaries, and arteries. All of this is done
in one heartbeat. Isn’t that amazing?
The valves of the heart have a very, very important role in the function of the
heart. Without the valves, the blood would flow back into each chamber and would
The normal Mitral Valve controls blood flow between the upper (left atrium) and lower chamber (left ventricle) of the left side of the heart. The mitral valve allows blood to flow from the left atrium into the left ventricle, but not flow the other way. With each heartbeat, the atria contract and push blood into the ventricles. The flaps of the mitral and tricuspid valves open to let blood through. Then, the ventricles contract to pump the blood out of the heart. The flaps of the mitral and tricuspid valves close and form a tight seal that prevents blood from flowing back into the atria (nhlbi.nih.gov).
The cardiovascular system - The cardiovascular system is responsible for transporting nutrients and removing gaseous waste from the body. It consists of the heart, which powers the whole process, the veins, arteries, and capillaries, which deliver oxygen to tissue at the cellular level. The cardiovascular system carries blood that is low in oxygen away from the heart to the lungs via arteries, where oxygen levels are restored through the air once oxygenated, this blood is then carried throughout the body via arteries, keeping our organs and tissue alive. The cardiovascular system is the workhorse of the body, continuously moving to push blood to the cells. If this important system ceases its work, the body dies.
The heart is one of the most unique organs in the human body. Its capabilities and functions truly are amazing. The heart 's function is to pump blood throughout the body supplying oxygen and nutrients to tissues. The heart is the size of your fist and weighs roughly 8-12 ounces depending if you’re male or female. The heart pumps through 100 kilometers of blood vessels for blood that is 3 to 4 times thicker than water at 60 to 80 times minute for a total volume of 5 million liters a year at rest. A basic diagram of the heart includes, right coronary, superior vena cava, aorta, pulmonary artery, pulmonary vein, right atrium, right ventricle, left atrium, left ventricle. There are more in
The pattern of blood flow starts in the left atrium to right atrium, then into the left ventricle and right ventricle. During its course, blood flows through the mitral and tricuspid valves. Simultaneously, the right atrium is granted blood from the veins through the superior and inferior vena cava. The job of the superior vena cava is to transport de-oxygenated blood to the right atrium. When your heart beats, the first beat represents the AV valves closing to prevent the backflow of blood into the atrium.
Following the pathway of air, it begins in the atmosphere and enters the body through
The heart serves as a powerful function in the human body through two main jobs. It pumps oxygen-rich blood throughout the body and “blood vessels called coronary arteries that carry oxygenated blood straight into the heart muscle” (Katzenstein and Pinã, 2). There are four chambers and valves inside the heart that “help regulate the flow of blood as it travels through the heart’s chambers and out to the lungs and body” (Katzenstein Pinã, 2). Within the heart there is the upper chamber known as the atrium (atria) and the lower chamber known as the ventricles. “The atrium receive blood from the lu...
The process for an adult’s circulation system starts with non-oxygenated blood entering the right atrium from the inferior and superior vena cava. Once in the right atrium the tricuspid valve opens and drains the blood to the right
The circulatory system and respiratory system share a highly important relationship that is crucial to maintaining the life of an organism. In order for bodily processes to be performed, energy to be created, and homeostasis to be maintained, the exchange of oxygen from the external environment to the intracellular environment is performed by the relationship of these two systems. Starting at the heart, deoxygenated/carbon-dioxide (CO2)-rich blood is moved in through the superior and inferior vena cava into the right atrium, then into the right ventricle when the heart is relaxed. As the heart contracts, the deoxygenated blood is pumped through the pulmonary arteries to capillaries in the lungs. As the organism breathes and intakes oxygenated air, oxygen is exchanged with CO2 in the blood at the capillaries. As the organism breathes out, it expels the CO2 into the external environment. For the blood in the capillaries, it is then moved into pulmonary veins and make
The heart is two sided and has four chambers and is mostly made up of muscle. The heart’s muscles are different from other muscles in the body because the heart’s muscles cannot become tired, so the muscle is always expanding and contacting. The heart usually beats between 60 and 100 beats per minute. In the right side of the heart, there is low pressure and its job is to send red blood cells. Blood enters the right heart through a chamber which is called right atrium. The right atrium is another word for entry room. Since the atrium is located above the right ventricle, a mixture of gravity and a squeeze pushes tricuspid valve into the right ventricle. The tricuspid is made up of three things that allow blood to travel from top to bottom in the heart but closes to prevent the blood from backing up in the right atrium.
the aortic valve, between the left ventricle and the aorta. heart_chambers.jpg Each valve has a set of "flaps" (also called leaflets or cusps). The mitral valve normally has two flaps; the others have three flaps. Dark bluish blood, low in oxygen, flows back to the heart after circulating through the body. It returns to the heart through veins and enters the right atrium.
As humans we need the heart to pump blood all around the body in order
The combination of these is called hemolymph or haemolymph. It consists of a heart, vessels, and hemolymph. The hymolymph is first pumped into the aorta through the heart, dispersed into the head and throughout the hemocoel. It then travels back through the ostium that are located in the heart, where the process is repeated. Muscular movements by the animal during locomotion facilitate hemolymph movement around the body in all directions. The hemolymph bathes the organs directly supplying oxygen and removing waste. Blood flows at a very slow speed because of absence of smooth muscles that are responsible for contraction of blood vessels. Blood is drawn back toward the heart through open-ended pores (ostia) when the heart relaxes. Most invertebrates (Arthropoda and Mollusca) have an open circulatory
The direction of the air goes through the trachea and goes into the posterior air sac, expiration will happen and push the air into the lungs. The air will then turn into a second inspiration where it will flow out of the lungs and into the anterior air sacs which leads to the second expiration which is when that air will flow back out through the trachea. The parabronchi is where the gas exchange happens. Two inhalations and two
The respiratory system provides oxygen to the blood and organs. The way that the respiratory system achieves this is by deoxygenated blood flowing from the right atrium to the right ventricle and then through the pulmonary semilunar valve to flow into the lungs. Oxygen that has been inhaled travels down