M1 outline the adaptations to cardiovascular, respiratory, musculoskeletal and energy systems, brought about by regular exercise Cardiovascular System The cardiovascular system consists of the blood vessels and the heart. They function is to circulate the blood around the body to all the muscles. The red blood cells carry oxygen to all the muscles through the vein (carries blood to the heart). The veins have thin walls and contain blood under the low pressure.…
Describe the pathophysiology of left-sided heart failure. The left side of the heart supplies oxygenated blood to the systemic circulation. When there is a left-sided heart failure, the heart is unable to pump enough blood to meet the body’s needs for oxygenated blood. There is also increased pressure in the atrium which in turn also causes elevated pressure in the lungs that results in pulmonary congestion and edema.…
The right atrium gets blood from the systemic circuit and passes it to the right ventricle and it pumps blood to the pulmonary circuit. The left atrium collects blood from the pulmonary circuit and empties it into the left ventricle which then pumps blood into the systemic circuit. 39. Pericardial inflammation results in a production of pericardial fluid. The fluid builds u in the pericardial cavity, which restricts movement of the heart, and this is known as cardiac tamponade.…
About the size of a large fist, heart is made up of cardiac muscle, myocardium, with skeletal muscle-like striations. It has two upper atria & two lower ventricles separated vertically by septum, and four main valves with which the blood makes its directional flow into and out of the heart. Deoxygentated blood with which the blood flows into and out of the organ. Deoxygenated blood enters through the venae cava fills the right atrium (RA) and right ventricle (RV) through the tricuspid valve. Then, RV contracts pushing the blood to pulmonary circuit and returns oxygenated from the lungs and travels to left atrium (LA) and left atrium (LA) through the mitral valve.…
• Right side drives a short, low pressure pulmonary circulation while the left side drives longer, high pressure systemic circuit. • Wall of the left side of the heart is thicker than that of the right side. • Right side circulates the deoxygenated blood while the left side circulates oxygenated blood. • Right atrium receives blood from tissues and organs, and right ventricle pumps it to lungs. However, the left atrium receives blood from lungs and left ventricle pumps it to the rest of the body.…
The capillary covered alveoli inflate, deoxygenated blood flows through the capillaries. The carbon dioxide from the venous blood diffuses into the alveoli and the oxygen from the alveoli diffuses into the blood. This works through a process called diffusion in which gases move from where they have a high concentration to where they have a low concentration. The carbon dioxide is then breathed out. The oxygenated blood now is pumped to the mitochondria in cells so they can carry out respiration and produce ATP so humans have energy for life processes.…
Congestive Heart Failure The heart is fundamentally a blood pump. It pumps blood from the right side of the heart to the lungs to pick up oxygen. The oxygenated blood returns to the left side of the heart. The left side of the heart then pumps blood into the circulatory system of blood vessels that carry blood throughout the body.…
What side of the heart is affected by congestive heart failure (right, left, or both)? At the point when the right half of the heart starts to work less effectively, it can't pump much blood into the vessels of the lungs. Would Fluid accumulate somewhere? If so, Where? Explain your answer. Yes, Congestive heart failure (CHF) happens when the heart's pumping activity turns out to be weak to the point that liquid starts to amass in the lungs and other body tissues.…
Explain the significance of the thickness of the left ventricular wall. The left ventricle works harder as it pumps blood to the systemic circuit, not just to the pulmonary portions as the right ventricular does. Therefore, the left ventricular walls are thicker, to support the hard work that it has to do throughout the body (Martini & Nath,2014 p.685) The major coronary vessels are on the surface of the heart.…
Moreover, the left ventricle receives freshly oxygenated blood from the lungs throughout the left atrium. Dilated cardiomyopathy affects the valves as well. When this happens, blood leaks to back up in the circulation system. Unfortunately, this heart failure is common in certain breeds, such as the Doberman.…
When the right atrium contract the blood flows through the tricuspid valve and into the right ventricle. When the right ventricle contracts the blood passes the pulmonary semilunar valve, into the pulmonary artery, and the blood is going to the lungs. The blood goes through a process in the lungs and the blood become oxygenated. The oxygenated blood is returned to the heart from the pulmonary vein and goes into the left atrium. When that atrium contracts the blood asses the mitral (bicuspid) valve and goes to the left ventricle.…
The right side of the heart picks up oxygen by moving blood to the lungs. The oxygen-rich blood then goes to the left side of the heart. The left side of the heart then moves it to the aorta; the main artery that transports oxygen-rich blood to the body (“Ventricular Septal Defect (VSD)”). VSD causes the person’s…
The heart is about the size of a fist pushing approximately an average 1,900 gallons of blood per day. The heart is made up of cardiac muscle tissue and has four chambers. There are two atria which are responsible for receiving the deoxygenated blood that is coming back from the veins. The other two chambers are the ventricles, which pump oxygenated blood in the arteries is carried away from heart. Separating the chambers are valves.…
These valves, known as the tricuspid valve on the right side and mitral valve on the left side, are present to prevent backflow from the ventricles into the atrium. Three veins are connected to the right atrium – the superior vena cava, the inferior vena cava, and the coronary sinus; the pulmonary trunk stems from the right ventricle; the left atrium has four pulmonary veins the join it; and connected to the left ventricle is the aorta. (Farley, McLafferty, & Hendry,…
In vitro, derived from Latin, meaning “in glass”, are the study of biological components outside the body. The presence of those components in the body is termed in vivo. Generally designing of medical device components are designed in vitro and few make it in vivo trials. Governing bodies like FDA requires in vitro testing prior to the in vivo testing in humans or animals. The in vitro environments gives freedom to experiment and evaluate better designs and conduct certain experiments that could not be controlled as accurately within the body.…