Heart Demonstration Lab Report

In a normal human being the heart correctly functions by the blood first entering through the right atrium from the superior and inferior vena cava. This blood flow continues through the right atrioventricular valve into the right ventricle. The right ventricle contracts forcing the pulmonary valve to open leading blood flow through the pulmonary valve and into the pulmonary trunk. Blood is then distributed from the right and left pulmonary arteries to the lungs, where carbon dioxide is unloaded and oxygen is loaded into the blood. The blood is returned from the lungs to the left

CONSTRUCTED RESPONSE 1. Have you ever thought about if there was a law against you and your wife having more kids, well if you lived in China in 1980 you were out of luck because they just implemented the one child policy. In 1980 China was growing so rapidly the government had to take a step in and implement a law saying each household could only have one kid, this was because China was growing so rapidly they wouldnt be able to keep up with the extremely fast growing population. Some might ask is the one child policy a good idea and to that I say yes. The one child policy was a good idea because it helped with pollution, economics, and the relationships in Chinese households.

The heart is a very strong muscle that has one major job. The heart’s job is to pump blood throughout the entire body. The heart is made up of 4 chambers, and 4 valves. There is the right and left atrium, and a right and left ventricle. The atriums are the superior chambers, and the ventricles are inferior chambers. The left ventricle is the most important, because that is where the blood travels through to go to the aorta, and eventually the rest of the body (Taylor 2015).

Both the right and left atrium contract causing blood to flow though the two valves, and then into the left ventricle. The left ventricle pumps blood into the systemic circulation through the aorta. This systemic circulation system is much bigger than the pulmonary circulation system, which is why the left ventricle is so big. The blood on the left side of the heart is oxygenated. It becomes oxygenated when the deoxygenated blood passes through the right atrium and then flows into the left ventricle. It is then pumped along the pulmonary artery into the lungs where it is oxygenated. It then travels through the pulmonary veins back into the heart. It enters through the left atrium and then travels to the left ventricle. This process is repeated over and over again, to make blood continuously flow through the heart, lungs and body. This process ensures that there is always enough oxygen for the body to work

In mammals each organ serves its own importance to the life and survival of that individual and if one is not working properly it can result in a disturbance in its general physiology. One of those organs is the heart, which serves as a pump that helps circulate blood throughout the body. It also serves in the process to oxygenate the blood by pushing the blood to the lungs. This happens by the blood first entering the right atrium at a low pressure and then it is pushed out of the right ventricle at a high pressure to the lungs, where the carbon dioxide and oxygen are exchanged. The oxygenated blood then returns to the heart through the left atrium, at low pressure, and then is forced through the rest of the body by the left ventricle, at

The heart pumps the blood around the body through the blood vessels which is made of mostly veins and capillaries. The blood carries the dissolved oxygen around the bodily

For this experiment students sought to demonstrate how cardiac function was regulated. Students made hypothesizes for clamping, drug injections, and stimulation with effects of arterial pressure and heart rate in mind. Students performed various tests in order to fully obtain results for this experiment which included the injection of drugs and their effects, using and removing a clamp and that effect, and finally used an electrical simulation machine in order to stimulate nerves to test that effect. The main hypothesizes depended on each treatment and each prediction was made specifically to fit a certain set of conditions. These various tests were performed to obtain a better understanding of cardiac function and its physiological aspects. Understanding cardiac function is not only very important to science but very important to the

The process starts first with the entrance of blood into the right atrium. From the right atrium than the blood goes through the tricuspid valve to the right ventricle. Then the heart pumps the blood from the right ventricle to the pulmonary valve. From there the blood moves through the pulmonary artery and then into the capillary beds of the lungs where gas exchange occurs. From the lungs, the blood goes through the pulmonary veins to the left atrium of the heart. From the heart, the blood then goes down through the mitral valve. From the mitral valve, it flows down into the left ventricle. After that, the left ventricle pushes the blood up into the aorta. The blood then moves into arteries then back up to right atrium again then the cycle

Oxygen and nutrients the body requires for function are pumped around this complex network of blood vessels by the heart. At roughly the size of a human fist, the heart is a four-chambered muscle and performs two functions of circulation simultaneously and continuously. Systemic and pulmonary circulation. The heart is made up from three separate layers of cardiac tissue; the outer layer called the pericardium, which is a double sac-like outer covering with serous fluid inside to keep the middle layer, the myocardium from adhering to the outer layer. This middle layer of the heart is the heart muscle which is thicker on the left side, to aid with the pressure needed to sustain systemic circulation. The inner layer of the heart is the endocardium. It’s lining is smooth to help prevent the blood which circulates around the inside of the heart from clotting. The heart is the human body’s in-built pacemaker, and the electrical signals sent through the it cause the heart to contract and relax. This process is triggered by the autonomic nervous system and the contraction and relaxing cycle is

In the first part of the practical, we will dissect the heart of a sheep and observe its anatomical structure. We will also examine the structure of blood vessels at a microscopic level. My hypothesis is that by examining the anatomy of the cardiovascular system, we will be able to detect differences in both vessels and the chambers of the heart. In the second part of the practical we will examine the electrical activity of the heart. In doing so my aim will be to produce a familiar ECG reading containing a P wave, QRS complex and T wave. Futhermore, we will take blood pressure readings by listening to the korotkoff sounds of the heart using a sphygmomanometer and stethoscope. We hypothesis that the higher the arm position is from the ground, the smaller the blood pressure reading will

Well Juror #3 talked about his own son that we see the true reason for his bias against the boy. During the trial, Juror 3 talks about how he once saw his own son run away from a fight. I remember him saying " I told him (his son) right out," I'm going bust you up into little pieces for trying." When his son was 15 he him on the face. Which clears how that this guy has huge problems with kids not respecting their father. In my understanding each Juror brings their own life problems into that jury room. We can't control our emotions, we all are human and it's normal to express feelings. One juror was hurting badly leading him to act that way. He misses his son and is very disappointed in his son for such high disrespect towards his father.

Introduction: In this experiment, cardiovascular fitness is being determined by measuring how long it takes for the test subjects' to return to their resting heart rate. Cardiovascular fitness is the ability to "transport and use oxygen while exercising" (Dale 2015). Cardiovascular fitness utilizes the "heart, lungs, muscles, and blood working together" while exercising (Dale 2015). It is also how well your body can last during moderate to high intensity cardio for long periods of time (Waehner 2016). The hypothesis is that people who exercise for three or more days will return to their resting heart rate much faster than people who only exercise for less than three days.

Your heart. You probably don't think about it often, even though it does so much. Sometimes you may ask why do we need our heart? What does our heart do? How do we keep our heart healthy? And how do we study our heart? These questions will be answered in this one article.

Joseph Conrad’s Heart of Darkness is leaving a lasting impact on scholars due to its range of interpretations. Early examinations left out the topic of racism because of the time period; however, when Chinua Achebe highlights racism in Conrad’s work he starts the conversation. Whether Conrad is racist is intricate when contextualized now or when it was written, late 1800s.

The heart is what keeps all living breathing species alive, animals or humans. If the heart was to shut down but the nervous system continued and was active, it would not matter. The entire body would shut down because once the supplier no longer delivers what is needed; organs will no longer function correctly, therefore causing irreversible damage. Arteries are what carried the rich oxygenated blood from the heart to the rest of the organs throughout the body. The Veins are what bring back the carbon dioxide blood to the heart. It then has to be put through a cycle so that it can be shipped back out. Blood travels from the right atrium through the tricuspid valve, to the right ventricle. From there, it is pumped to the lungs, the oxygen-rich blood goes to the left atrium and then through the mitral valve to the left ventricle where it goes to the aorta to be pumped around the body (Colombo 7). What looks to be a complicated process that would take hours or minutes is actually done in a matter a seconds.