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Copy of Cardiovascular System and FedEx

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Nicole Sto

on 18 February 2013

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Transcript of Copy of Cardiovascular System and FedEx

Cardiovascular System Main Center Package Organs FedEx system FedEx System of the body It was a very sunny day Tris and Will went for a run. They had only run for a block. Will's heart was beating very, very, hard and fast. This experience is directly related to the cardiovascular system. The simplist way to explain it is to compare it to the FedEx system. Delivery Man What transports the packages throughout the system is Will's arteries and veins which are blood vessels. The arteries carry blood away from the heart while his veins carrry blood toward the heart. Will's main center is his heart. His maincenter is composed mostly of muscle and nervous tissue and is divided into four chambers. Top Two: Atrium
Bottem Two: Ventricles
Left Half: Supplies the body with oxygenated blood.
Right Half: Helps exchange the carbon-dioxide your body generates for additional oxygen. The package being delivered inside Will's body is the blood. The blood is transported by the arteries and veins throughout the body. They both act as the delivery man in the way that they transport the packages to and from the main center. Composition Plasma- the fluid in which other parts are suspended. 55% of the blood.
Red Blood cells- transport oxygen from the lungs to the cells. 40% of the blood.
White Blood cells- help prevent infection and fight it off. 5% of the blood. Heart
Bone Marrow- tissue that reproduces red blood cells, white blood cells, and platelets.
Blood Vessels-transport blood
Spleen- Recycles old red blood cells, and stores white blood cells and platelets. Also helps fight bacteria. Security To prevent trouble makers in Will's body, otherwise known as pathogens, we have security also known as the lymphatic system. The lymphatic system is a network of vessels that helps maintain the balance of fluids in the space between the cells to help fight off infection. Structure Consists of a network of vessel and tissues that are invloved in the movement and filtering of lymph. Small lymph vessels collect lymph and combine to form large vessels. T Cells and B Cells There are T cells and B cells that react to pathogens. T cells are lymphocytes that are stimulated to enlarge and B cells multiply both when in contact with a pathogen. The T cells are the helper cells to the B cells. They are both part of the immune response. Heart Red Blood Cells White Blood Cell Platelets (Plasma) Delivery Truck What is transporting the packages/blood is the delivery truck which is best compared to Systematic Circulation and Pulmonary Circulation. Pulmonary Circulation carries oxygen-depleted blood away from the heart, to the lungs and returns oxygenated blood back to the heart.
Systematic Circulation carries oxygenated blood away from the heart to the body and returns deoxygentated blood back to the heart. Circulation To make it simpler: By: Wafa Osman & Nicole Stoinski
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