pressure that the blood exerts on the arteries and vessels while the heart is beating. The diastolic pressure is a measurement that determines the amount of pressure in your arteries between heartbeats while your heart is relaxed. The diastolic pressure is the most important in monitoring blood pressure in younger individuals‚ while monitoring the systolic pressure becomes more relevant as we age. Systolic pressure is known to rise as a result of hardening arteries. Systolic and diastolic pressure
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form of cardiovascular disease in which the inner layers of artery walls are made thick and irregular by plaque deposits; arteries become narrow and blood supply can be reduced. (pg. 409) Atherosclerosis is deposited by fatty substances (called plaques) in the walls of the arteries. (pg.249) The arteries become narrow due to a person having high blood pressure which makes the heart work harder which forces the blood through the arteries making it narrow and stiffen. They also become narrowed buy
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Topic: Health‚ Diet and Diseases Title: Substance Abuse and Heart Disease Problem Statement: In Trinidad and Tobago there has been a reported increase in the number of Cardiac disease related deaths. Design an experiment to investigate the relationship between a particular lifestyle choice and the health of an individual’s heart. Hypothesis: The more cigarettes villagers living within Philadelphia Trace smoke the higher the blood pressure of those villagers. Aim: To plan and Design
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physiological disorders I will be talking about in this assignment is hypertension and Diabetes. Pulmonary hypertension Pulmonary hypertension is a lung disorder. The arteries that carry blood from the heart to the lungs become narrowed‚ making it very hard for the blood to get through the vessels‚ this then causes the pressure in the arteries to increase more than usual (high blood pressure). Scientists think that the procedure starts with injury to the layer of cells that line the small blood vessels
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References: Arteriosclerosis artery walls. This will allow for both improving the flexibility of the walls of the arteries and improving the blood flow through them. In view of the years it takes to accumulate these deposits‚ simply removing them from the artery walls and leaving them in the bloodstream should allow the body’s natural processes to remove the overwhelming preponderance of material
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Atherosclerosis is a disease affecting the arterial blood vessel and it is commonly referred to as a "hardening" or "furring" of the arteries. It is caused by the formation of multiple plaques within the arteries. Theses plaques begin to form when a vessel receives tiny injuries‚ usually at a point of branching. In turn these plaques gradually thicken and harden with fibrous material‚ cells‚ and other deposits‚ restricting the lumen (opening) of the vessel and reducing blood flow to the tissues‚
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1.6 VESSELS: ARTERIES‚ VEINS & LYMPHATICS CARDIOVASCULAR SYSTEM Structure • heart‚ arteries‚ arterioles‚ capillaries‚ venules‚ veins Functions • transportation (oxygen‚ carbon dioxide‚ nutrients‚ wastes‚ wastes hormones) • regulation (pH‚ body temperature‚ temperature fluid & electrolytes) Principle arteries and veins CARDIOVASCULAR SYSTEM • Heart: pumps blood • Artery: vessel leaving the heart (Arteries take blood AWAY from your heart) • Vein: vessel going to the heart • Capillaries:
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At the point when blood streams from the heat it travels through blood vessels. There are five fundamental types of blood vessels: arteries‚ arterioles‚ capillaries‚ venules‚ and veins. There are three basic layers of a blood vessel: tunica interna‚ tunica media‚ and tunica externa. The inner lining of a blood vessel that comes into direct contact with blood is the tunica inerna. In this layer blood flows through the blood vessel in a tube that forms‚ this tube is called the lumen. There are three
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swelling and inflammation of the walls of the blood vessels. It also affects the mucous membranes‚ lymph nodes‚ and the heart. The heart problems are the most worrisome part of the disease. The inflammation of blood vessels in the arteries of the heart (coronary arteries) can lead to aneurysms. An aneurysm is a weak area in the blood vessel that balloons out. Such aneurysms can lead to a heart attack. This may happen even in young children. It is very uncommon. Kawasaki disease is more common in
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Extrinsic Control of SV by factors outside of the heart (neural‚ hormonal) Sympathetic activity & Epinephrine binds to ventricular wall: Increase in heart’s contractibility and venous return (volume of blood pumped back to heart) Coronary Artery Disease Arteries of the heart Provide the heart with its own blood supply Pathological changes in the
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