Word Dissector 8
Word Dissector 8 HPHY 211
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This 0 page Class Notes was uploaded by Briana Jurado on Tuesday November 3, 2015. The Class Notes belongs to HPHY 211 at University of Oregon taught by Hopkins in Fall. Since its upload, it has received 43 views. For similar materials see Medical Terminology in Human Physiology at University of Oregon.
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Date Created: 11/03/15
Word Dissector 8 Briana J urado Dr Hopkins HPHY 211 18 November 2014 1 a d Pages 398 407 Arteries An artery is a large blood vessel that carries blood away from the heart meaning they are strong enough to withstand the high pressure of the heart pumping An arteries wall is lined with connective tissue muscle tissue and elastic fibers Arterioles are smaller branches of arteries They are thinner and carry blood to capillaries Chabner 398 Capillaries are delicate vessels that carry nutrient rich oxygenated blood from the arteriesarterioles to the body cells Capillaries have then walls that allow the passage of oxygen and nutrients into the cells from the bloodstream There nutrients are catabolized to release energy Chabner 398 Veins carry the blood back to the heart from the tissues They have thinner walls that arteries and valves which prevent the back ow of blood Chabner 398 Pulmonary circulation is the circulation of blood through the vessels from the heart to the lung capillaries Systemic circulation is the blood ow from the heart to the tissue capillaries a O rta Supe orve cava r Aortic valve Pulmonary artery ulmonar y valve Pulmonary valve Left atrium Mitral valve Right atriu Trirliqnirl Inferior vena cava Left AannI Right ventricle Oxygen poor blood enters the heart through the venae cavae I superior vena cava drains blood from the upper part of the body I inferior vena cava carries blood from the lower portion of the body I venae cava brings the oxygen poor blood through the body to the right atrium which forces the blood through the tricuspid valve and into the right ventricle I right ventricle contracts to pump the oxygen poor blood through the pulmonary valve and into the pulmonary artery I tricuspid valve shuts so blood doesn t go back into the right atrium I blood enters the lung and carbon dioxide is expelled I oxygen enters the capillaries and is brought back to the heart by the Word Dissector 8 pulmonary veins I oxygenated blood enters the left atrium which contract to force blood through the mitral valve and into the left ventricle I propels the lood through the aortic valve and into the aorta I aorta carries the blood all over the body and closes to prevent the aortic blood back into the left ventricle Chabner 402 e Distole relaxation occurs when the ventricle walls relax allowing the blood to ow into the heart from the venae cavae and the pulmonary veins As blood passes from the right and left atria into the ventricles the tricuspid and mitral valves open Chabner 405 Systole contraction happens after and the walls of the ventricles are contracting to pump blood into both the aorta and pulmonary artery The tricuspid and mitral valves are shut so that blood cant ow back into the atria Chabner 405 f An electrocardiogram ECG is a record used to detect electrical changes in the heart muscle when the heart beats A normal tracing shows five waves that represent the electrical changes when a wave gets excited and spreads through the heart g Conduction system specialized cardiac muscles cells that send signals to the heart allowing the heart to contract pacemak u it Left Bundle Of bundle his F Right bundle h The force that the blood exerts on arterial walls is blood pressure Systolic is the upper number and diastolic is the lower number i 12080 mmHg normal ii 14090 mmHg high blood pressure 2 Two questions for a Registered Nurse a How many hours per week do you work b Did you get a bachelor degree in something other than nursing first and then go onto a nursing school Word Dissector 8 Works Cited Anatomy of the Heart Digital image Study Blue Np nd Web 17 NOV 2014 Chabner DaVi Ellen The Language of Medicine St Louis MO Saunders ElseVier 2014 Print Heart Structure Digital image Click Biology Np nd Web 17 NOV 2014
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