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<tem xmlns="http://www.teachengineering.org/tem/elements/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.teachengineering.org/tem/elements/1.0/ http://www.teachengineering.org/schemas/tem.xsd"><identifier>http://www.teachengineering.org/view_lesson.php?url=collection/duk_/lessons/duk_heartvalve_tech_less/duk_heartvalve_tech_less.xml</identifier><docType>lesson</docType><format>text/xml</format><language/><title>Put Your Heart into Engineering</title><creator>Techtronics Program, </creator><keywords><keyword>capillaries</keyword><keyword>veins</keyword><keyword>arteries</keyword><keyword>prosthetic devices</keyword><keyword>valves</keyword><keyword>vascular system</keyword><keyword>biomedical engineering</keyword></keywords><vocabulary><word>biocompatibility </word><word>hemophiliac</word><word>anti-coagulant</word><word>immunosuppressive</word><word>epithelial</word><word>capillaries</word><word>vein</word><word>artery</word><word>prosthetic</word><word>valves</word><word>vascular</word><word>blood vessel</word></vocabulary><summary>This lesson contains background about the blood vascular system and the heart. Also, the different sizes of capillaries, veins, and arteries, and how they affect blood flow through the system.  We will then proceed to talk about the heart’s function in the blood vascular system.  This will lead into a discussion of heart valves, how they work and what might cause them to fail.  Then we will discuss prosthetic heart valves.</summary><engrConnection>
		
			
				This lesson examines the need for artificial heart valves so students will understand what the design requirements for such a device are.  Engineers must understand what is required of a device before they build it.
			
		
	</engrConnection><learningObjectives><learningObjective>Identify the difference between capillaries, veins, and arteries.  </learningObjective><learningObjective>Explain how valves in the heart work.</learningObjective><learningObjective>Discuss what a prosthetic valve is and how it works.</learningObjective><learningObjective>Explain how engineering contributes to solving problems in the body.</learningObjective></learningObjectives><timeRequired unit="hours">2.5</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Emily McDowell (Primary Content Creator), Pratt School of Engineering, Duke University</contributor><contributor>Alice Hammer (Supplementary Content Creator), Pratt School of Engineering, Duke University</contributor></contributors><requirements><requires>http://www.teachengineering.org/collection/duk_/activities/duk_valvedesign_tech_act/valveshandout.pdf</requires></requirements><references><reference>http://www.americanheart.org</reference><reference>http://www.sci.mus.mn.us/heart/heart/top.html</reference></references><eduStandards><eduStandard><id>S10284D0</id><locale>North_Carolina</locale><type>Science</type><description>2.02  Use information systems to:&lt;br /&gt;&amp;#8226; Identify scientific needs, human needs, or problems that are subject to technological solution.</description><lowgrade>7</lowgrade><highgrade>7</highgrade></eduStandard><eduStandard><id>S10284D2</id><locale>North_Carolina</locale><type>Science</type><description>2.03  Evaluate technological designs for:&lt;br /&gt;&amp;#8226; Application of scientific principles.</description><lowgrade>7</lowgrade><highgrade>7</highgrade></eduStandard><eduStandard><id>S10284F7</id><locale>North_Carolina</locale><type>Science</type><description>4.01  Analyze how human body systems interact to provide for the needs of the human organism:&lt;br /&gt;&amp;#8226; Musculoskeletal.</description><lowgrade>7</lowgrade><highgrade>7</highgrade></eduStandard><eduStandard><id>S1028500</id><locale>North_Carolina</locale><type>Science</type><description>4.02  Describe how systems within the human body are defined by the functions it performs.</description><lowgrade>7</lowgrade><highgrade>7</highgrade></eduStandard><eduStandard><id>S1028501</id><locale>North_Carolina</locale><type>Science</type><description>4.03  Explain how the structure of an organ is adapted to perform specific functions within one or more systems.&amp;#8226; Liver.</description><lowgrade>7</lowgrade><highgrade>7</highgrade></eduStandard></eduStandards><geoCoverage>United States</geoCoverage><rights>Copyright 2012 - Techtronics Program, Pratt School of Engineering, Duke University</rights><rights>http://www.teachengineering.org/policy_ipp.php</rights><isPartOf>http://www.teachengineering.org/</isPartOf><created type="W3CDTF">2009-01-21</created><gradeLevel lowerbound="6" upperbound="8">7</gradeLevel><audience>Teacher</audience></tem>

