From the Heart

URL: http://www.teachersdomain.org/6-8/sci/life/stru/circulator/index.html

316957|1007936

This video segment describes the basics of the circulatory system: how the heart pumps the blood that carries oxygen and nutrients throughout the body.

Summary

Subject keyword(s)	Animals, Cardiovascular system, Life science, Life Science, Organ systems, Science
Grade level	Middle School, Informal Education
Intended audience	Learner
Resource type	Audio/Visual, Instructional Material
Resource format	video
Rights	2002 WGBH Educational Foundation. All rights reserved. Footage courtesy of Johns Hopkins University. Animation courtesy of Mayo Clinic, Rochester, MN. ©2002 WGBH Educational Foundation. All rights reserved. Footage courtesy of Johns Hopkins University. Animation courtesy of Mayo Clinic, Rochester, MN.

Using this resource

Usage Data	Summary of usage data Times favorited: 1 Use was recorded from the following sources: Instructional Architect Usage Data

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Teacher's Domain: multimedia resources for the classroom and professional development

Title	Teachers' Domain: Multimedia Resources for the Classroom and Professional Development
Link	http://www.teachersdomain.org/
Description	Teachers Domain is a multimedia library for K-12 science educators, developed by WGBH through funding from the National Science Foundation as part of its National Science Digital Library initiative. The site offers a wealth of classroom-ready instructional resources, as well as online professional development materials and a set of tools that allow teachers to manage, annotate, and share materials. Through the Teachers Domain initiative, WGBH was able to reformat and deliver content from its award-winning science library, including content from NOVA, A Science Odyssey, Evolution, and other programs. WGBH staff added background articles, new lesson plans, interactives, images, and other types of resources to round out the multimedia library. Each classroom resource is correlated to state and national science standards. The professional development content includes video of teachers modeling best practices in their classroom instruction; interviews with educators reflecting on effective classroom strategies; and online courses in development for elementary science educators. The "My Resources" feature on the site allows users to save, annotate, and share particular pieces of multimedia content they've found in their site searches. Teachers might organize resources according to class period, by student groups, or by units of study in the yearlong school curriculum. Users can grant others in their school permission to view their resource folders.
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Title	Middle School Portal: Math and Science Pathways (MSP2)
Link	http://msteacher2.org/
Description	The Middle School Portal 2: Math and Science Pathways (MSP2) supports middle grades educators with high-quality, standards-based resources and promotes collaboration and knowledge-sharing among its users. Educators use MSP2 to increase content knowledge in science, mathematics, and appropriate pedagogy for youth ages 10 to 15. MSP2 employs social networking and digital tools to foster dynamic experiences that promote creation, modification, and sharing of resources, facilitate professional development, and support the integration of technology into practice. MSP2 is a project of the Ohio State University College of Education and Human Ecology, National Middle School Association, and Education Development Center, Inc., and is funded by the National Science Foundation. The partners integrate resources, tools, and services across projects, and support multiple methods of resource discovery to meet the needs of this audience.
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Content contained within the resource

Teachers' Domain - Digital Media for the Classroom and Professional Development Search Teachers' Domain Go User: My Folders Loading... Create a new folder Upload Media My Groups No groups created yet. Create a new Group Join a Group My Profile HELP | SIGN OUT Please sign in for full access This Teachers' Domain feature requires registration, which is simple, safe, and free. Register Now Citation "From the Heart." Teachers' Domain. 26 Sep. 2003. Web. 3 Feb. 2012. .

"From the Heart." Teachers' Domain. 26 Sep. 2003. Web. 3 Feb. 2012. <http://www.teachersdomain.org/resource/tdc02.sci.life.stru.circulator/>.

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Signing in now will connect your and Teachers' Domain accounts, so that in the future you will automatically be signed into Teachers' Domain when you come from . From the Heart Resource for Grades 6-8 | Citation Media Type: Video Running Time: 3m 14s Size: 4.1 MB View SAVE TO FOLDER Loading... Save Cancel Share | Source: Produced for Teachers' Domain Resource Produced by: Collection Developed by: Collection Credits Collection Funded by: See Also: National K -12 Subject: Living Systems Lesson Plans Using this Resource: The Circulatory System This video segment describes how the chambers of the heart contract and relax in synchrony to push blood through the pulmonary and systemic loops of the circulatory system. You'll see how the heart pumps oxygen-depleted blood to the lungs, where red blood cells acquire oxygen before travelling back to the heart and then on to the rest of the body. Alternate Media Available: From the Heart (Audio Description) (Video) Accessibility Features: Audio Description, Caption Background Essay The rhythmic and incessant beating of the heart is critical to humanlife. Your heart beats on average about 100,000 times a day and willpump about 42 million gallons of blood during your lifetime. The heart's main purpose is to pump blood throughout the body to supplycells and tissues with the food and oxygen they need to survive. The bodycontains approximately six quarts of blood. By completely circulatingall six quarts through the body every one to three minutes, the heartkeeps the living system -- our body -- running. As thevideo describes, oxygen-poor blood is taken into the heart and pumpedto the lungs where it picks up oxygen. It then travels back to theheart before being pumped to cells throughout the body. Along the way,blood also passes through the abdomen, past cells of the intestinesand the stomach, where it picks up nutrients that it can distribute tonourish other parts of the body. How exactly does blood inthe capillaries exchange oxygen, other gases, and nutrients with nearbycells? In most cases it happens automatically. Differences in pressureand/or concentration are key to these critical exchanges. For example, the oxygen-rich blood travelling through a capillaryis under a slightly greater pressure than the cells adjacent to thecapillary. Gases like oxygen move from areas of higher pressure to areasof lower pressure. And even though the pressure difference between thecapillaries and the cells is slight, it is enough to cause oxygen tomove freely from the blood to the surrounding cells. Furtheralong, when the blood begins its journey back to the heart and entersthe slightly larger-diameter veins, its pressure drops to a point thatis lower than the pressure in the adjacent cells. This allows gases likecarbon dioxide -- a waste product -- to move out of the cells and intothe blood stream, where it can be carried to the lungs and released. Print Background Essay Discussion Questions What is the job of the circulatory system? What does blood circulate that the body needs? How does the circulatory system keep each cell in an organism alive and healthy? Print Discussion Questions Standards About Standards | Report a Standards Mismatch About Standards | Report a Standards Mismatch About Standards | Report a Standards Mismatch close Report a standards correlation problem To help improve this service, please report and describe any standards correlations that you find to be inaccurate. close About standards correlation Academic standards correlations on Teachers' Domain use the Achievement Standards Network (ASN) database of state and national standards, provided to NSDL projects courtesy of JES & Co. 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