each system functions independently. The cardiovascular system is made up of blood, the heart and blood vessels which are divided into arteries, arterioles, capillaries, venules and veins. (www.livestrong.com, 2013) Blood is a thick, red, slightly alkaline fluid and has 3 general functions; transportation, regulation and protection. There are 3 types of blood cell- red cells, white cells and platelets. Red blood cells transports oxygen in a pigment called haemoglobin, from the lungs which have
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of gases take place (pulmonary respiration) between the alveoli and the blood, through the pulmonary capillaries. At this point the blood will gain oxygen and lose Carbon dioxide. (tortora 2011) It is the function of the red blood cells to transport oxygen around the body. Red blood cells contain a pigment called haemoglobin which attracts oxygen into the cell. (www.hematology.org) From the lungs the blood flows to the heart through four pulmonary veins. It enters into the left atrium
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Osmosis Experiment Diana Arrowood Grand Canyon University BIO-100L Biology Concepts September 16, 2011 Osmosis Experiment Directions Use the information below to complete the Osmosis Experiment. Materials 1 fresh baking potato Water Salt Four small containers (i.e., drinking cups or clear glasses) A metric ruler Methods and Procedure 1) Place 1 cup (236 ml) of water in each of the 4 containers. In 2 of the containers, add 1 tablespoon (14.8 ml) of table salt and mix well until
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works. The Heart Your heart is a pump that keeps blood moving around your body. It delivers oxygen and nutrients to all parts of your body, and carries away unwanted carbon dioxide and waste products. As your heart muscle contracts, it pushes blood through your heart. With each contraction, or heartbeat: * Your heart pumps blood forward from its left side and into the arteries. Blood from the right side is pumped to your lungs. * The blood continues through the arteries, which divide off
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Introspective Overview What is HIV? Figure 1 HIV 1 virus electron micrograph, (Goldsmith) Human immunodeficiency virus (HIV) is a retrovirus of the lentivirus genus. HIV attacks the immune system by invading and destroying certain white blood cells such as helper T cells (mainly CD4+ T cells), dendritic cells, and macrophages. The infection and destruction of the CD4+ T cells takes place through three methods: The direct viral killing of the infected cells, the apoptosis (programmed cell
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Heart Failure Nicole Martin North Island College Congestive Heart Failure Left heat failure, also known as congestive heart failure (CHF), is an imbalance in pump function in which the heart is failing and unable to do its work pumping enough blood to meet the needs of the body’s other organs. CHF is commonly thought of as a disease but in fact is a syndrome. A syndrome as defined by Mosby’s Dictionary, as “a complex of signs and symptoms resulting from a common cause or appearing in combination
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dystrophy) • eterotrophic ossification. SHOCK (EARLY) • Hypovolemic or traumatic shock • Results from hemorrhage (both visible and nonvisible blood loss) and from loss of extracellular fluid into damaged tissues may occur in fractures of the extremities, thorax, pelvis, or spine. • Treatment of shock consists of restoring blood volume and circulation, relieving the patient’s pain, providing adequate splinting, and protecting the patient from further injury and other complications.
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Bleeding Bleeding refers to the loss of blood. Bleeding can happen inside the body (internally) or outside the body (externally). It may occur: • Inside the body when blood leaks from blood vessels or organs • Outside the body when blood flows through a natural opening (such as the vagina, mouth, or rectum) • Outside the body when blood moves through a break in the skin Considerations Always seek emergency assistance for severe bleeding, and if internal bleeding is suspected
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of fluid Petechiae Maturation arrest of mega-karyocytes Gum Bleeding Epistaxis Bleeding Decrease tissue perfusion Narrowed PP Low BP Decrease Hct and Hbg DEATH Shock Hypotension Decrease blood volume Low WBC Coagulation defect Altered liver function Liver damage Gastric stasis Vomiting GIT bleeding erosion and ulceration Melena Gastrointestinal (GIT) Dengue virus enters the body carried by circulation and multiplies
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heart disease is also known as coronary artery disease. The arteries are the blood vessels that supply blood to and from the heart. When the blood vessels are blocked, normal blood flow is lost to the heart. The blockage is caused by plaque, which contains large amounts of cholesterol. This plaque builds up on the inside of the coronary arteries and decreases the flow of blood that feeds the heart. Once the blood flow is impaired, it causes damage to the heart muscle. Even though the name heart
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