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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that it can return the oxygen rich blood to the rest of your body. The Superior vena cava and Posterior vena cava take in deoxygenated blood from the body and feeds it into the right atrium.
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
not flow through it smoothly. The valves are what keep blood from flowing back into the different chambers so that the heart can work properly. There are other parts of the heart that work together, such as the apex and the septum. The apex is the very bottom of the heart. This is what nurses and physicians listen to when listening to your heartbeat through a stethoscope. The septum is what separates the left and right atrium, and the left and right ventricles. In this assignment, I have learned about the different parts of the heart. The heart works in harmony together with our body in order to keep us alive. I have learned the blood flow through the heart and how deoxygenated blood gets oxygenated. There are different types of veins, organs, and arteries, that all carry blood throughout the body. All in all, I enjoyed creating a visual, physical model of the heart, because it helped me better understand the functions of the heart and its’ 4 chambers.
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 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 cardiovascular system is divided into two systems a pulmonary and a systemic. Pulmonary division- blood flows from the heart to alveolar capillaries and back to the heart. Systemic division- blood flows from heart to every capillary “except alveolar” and back to heart.
The Circulatory System is a transportation and cooling system for the body. The Red Blood Cells act like billions of little mail men carrying all kinds of things that are needed by the cells, also RBC's carry oxygen and nutrients to the cells. All cells in the body require oxygen to remain alive. Also there is another kind of cells called white blood cells moving in the system. Why blood cells protect from bacteria and other things that are harmful. The Circulatory system contains vein arteries, veins are used to carry blood to the heart and arteries to carry the blood away. The blood inside veins is where most of the oxygen and nutrients are and is called deoxygenated and the color of the blood is dark red. However, blood in the arteries are also full of oxygen but is a bright red. The main components of the circulatory system are the heart, blood, and blood vessels.
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 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.
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
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