Erythrocytes The images above shows the structure of haem (iron is shown in red). Images from Haemoglobin‚ BioNet The images above shows the structure of haem (iron is shown in red). Images from Haemoglobin‚ BioNet Erythrocytes‚ also known as ‘Red Blood Cells’‚ is one of the cells in our body that makes our blood. Erythrocytes are supported by many of other components in making blood. They are a disk shaped a cell which are filled with an iron contain pigment called haemoglobin . Haemoglobin
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atrium and right ventricle. Atrium are the upper chambers of the heart whereas ventricles are the lower chambers of the heart. All these chambers are separated by a tissue layer‚ called as septum. Left side of the chamber is associated with the circulation of the oxygenated blood and the right side receives the deoxygenated blood from various parts of the body. Valves There are four valves in the heart namely bicuspid valve‚
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never mixes with blood from the other side ( except in the fetus) 5) Describe the function of each heart valve. TRICUSPID VALVE- prevents blood from moving from right ventricle into right atrium during ventricle contraction‚ PULMONARY VALVE- prevents blood from moving from pulmonary trun into right ventricle during ventricular relaxation‚ MITRAL VALVE- prevents blood from moving from left ventricle into right atrium during ventricular relaxation. AORTIC VALVE- prevents blood from moving from aorta into
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Analyse how the cardiovascular and the digestive system interrelate to perform energy metabolism. Energy is used up all the time for body processes. Energy starts at conception and continues to carry on until you die. The amount of energy you need depends upon your age‚ sex and your level of activity. Food provides the energy we use; our foods bring us the vital energy that our body is burning throughout the day. Body growth‚ development and functioning are some of the vital and fundamental aspects
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ANATOMY CARDIOVASCULAR SYSTEM TEST REVIEW LeGrotte 2014 1. Which wall of the heart is thickest and why? The myocardium (cardiac muscle)‚ is the thickest section of the heart wall and contains cardiomyocytes‚ the contractile cell of the heart. 2. What part of the heart is the pacemaker and why? The SA Node is located in the right atrium of the heart. It is made up of a group of cells (myocytes) positioned on the wall of the right atrium‚ at the center of the heart and near the entrance of the
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the lungs for oxygenation (pulmonary circulation). The left cavity composed of the left atria and left ventricle receives the oxygenated blood from the lungs and pumps this blood to all body parts through the aorta (systemic circulation). The heart has four valves that regulate the flow of blood through its chambers. Blood flow from the right atrium to the right ventricle is regulated by the tricuspid valve. The pulmonary valve regulates blood flowing into the pulmonary artery from the right ventricle
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veins help bring that blood back to the heart. Arteries carries oxygenated blood away from the heart‚ and veins carry deoxygenated blood back to the heart. This process is called circulation. The roles are revered in pulmonary circulation. The pulmonary arteries bring deoxygenated blood to your lungs‚ while the pulmonary veins will bring
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Physiology The heart is the pump responsible for maintaining adequate circulation of oxygenated blood around the vascular network of the body. It is a four-chamber pump‚ with the right side receiving deoxygenated blood from the body at low presure and pumping it to the lungs (the pulmonary circulation) and the left side receiving oxygenated blood from the lungs and pumping it at high pressure around the body (the systemic circulation). The myocardium (cardiac muscle) is a specialised form of muscle
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18: The Cardiovascular System: The Heart You should be able to speak intelligently to all of these‚ but the bolded objectives are test material. Objectives Heart Anatomy 1. Describe the size‚ shape‚ location‚ and orientation of the heart in the thorax. 2. Name the coverings of the heart. 3. Describe the structure and function of each of the three layers of the heart wall. 4. Describe the structure and functions of the four heart chambers. Name each chamber and provide
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lung causing pulmonary embolism. DPT can be symptomatic or a symptomatic. Some of the symptoms of DVT are: pain‚ and swelling of the legs. There are many reasons DVT‚ develops some of them are bed rest following surgery or accident or any kind of blood clot disorder. One of the life treating complication of DVT is developing right ventricular hypertrophy (RHV). RHV is thickens of the walls of the right ventricles‚ after blood travel to the lungs from right ventricles via pulmonary arteries‚ if
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