Your Circulatory System
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Your Circulatory System
Author | : Conrad J. Storad |
Publsiher | : Lerner Publications ™ |
Total Pages | : 40 |
Release | : 2017-08-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 9781541505650 |
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The circulatory system is made up of the heart, the blood, and strong tubes called blood vessels. But what does the circulatory system do? And how do its parts work together to keep your body healthy? Explore the circulatory system in this engaging and informative book.
Regulation of Tissue Oxygenation Second Edition
Author | : Roland N. Pittman |
Publsiher | : Biota Publishing |
Total Pages | : 117 |
Release | : 2016-08-18 |
Genre | : Medical |
ISBN | : 9781615047215 |
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This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Caffeine in Food and Dietary Supplements
Author | : Leslie A. Pray,Institute of Medicine,Ann L. Yaktine,Food and Nutrition Board,Board on Health Sciences Policy,Diana E. Pankevich,Planning Committee for a Workshop on Potential Health Hazards Associated with Consumption of Caffeine in Food and Dietary Supplements |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2014 |
Genre | : Health & Fitness |
ISBN | : 0309297494 |
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Caffeine in Food and Dietary Supplements is the summary of a workshop convened by the Institute of Medicine in August 2013 to review the available science on safe levels of caffeine consumption in foods, beverages, and dietary supplements and to identify data gaps. Scientists with expertise in food safety, nutrition, pharmacology, psychology, toxicology, and related disciplines; medical professionals with pediatric and adult patient experience in cardiology, neurology, and psychiatry; public health professionals; food industry representatives; regulatory experts; and consumer advocates discussed the safety of caffeine in food and dietary supplements, including, but not limited to, caffeinated beverage products, and identified data gaps. Caffeine, a central nervous stimulant, is arguably the most frequently ingested pharmacologically active substance in the world. Occurring naturally in more than 60 plants, including coffee beans, tea leaves, cola nuts and cocoa pods, caffeine has been part of innumerable cultures for centuries. But the caffeine-in-food landscape is changing. There are an array of new caffeine-containing energy products, from waffles to sunflower seeds, jelly beans to syrup, even bottled water, entering the marketplace. Years of scientific research have shown that moderate consumption by healthy adults of products containing naturally-occurring caffeine is not associated with adverse health effects. The changing caffeine landscape raises concerns about safety and whether any of these new products might be targeting populations not normally associated with caffeine consumption, namely children and adolescents, and whether caffeine poses a greater health risk to those populations than it does for healthy adults. This report delineates vulnerable populations who may be at risk from caffeine exposure; describes caffeine exposure and risk of cardiovascular and other health effects on vulnerable populations, including additive effects with other ingredients and effects related to pre-existing conditions; explores safe caffeine exposure levels for general and vulnerable populations; and identifies data gaps on caffeine stimulant effects.
Your Circulatory System Works
Author | : Flora Brett |
Publsiher | : Capstone |
Total Pages | : 24 |
Release | : 2019-05-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 9781496633644 |
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The circulatory system is the heart of the body. With engaging text, fun facts, and infographics, learn how the circulatory system is responsible for pumping blood and nutrients throughout the body.
My Circulatory System
Author | : Martha E. H. Rustad |
Publsiher | : Capstone |
Total Pages | : 25 |
Release | : 2018-08 |
Genre | : Juvenile Nonfiction |
ISBN | : 9781977100207 |
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Your circulatory system pumps blood from your heart to the rest of your body. Follow the flow, and learn how blood works hard to keep your body healthy. Bring augmented reality to your students by downloading the free Capstone 4D app and scanning for access to awesome videos
Circulatory System
Author | : Chris Oxlade |
Publsiher | : Raintree |
Total Pages | : 32 |
Release | : 2014-01-30 |
Genre | : Juvenile Nonfiction |
ISBN | : 9781406274455 |
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This interesting book about how we get bursts of energy from our food teaches readers about the circulatory system.
Modeling the Heart and the Circulatory System
Author | : Alfio Quarteroni |
Publsiher | : Springer |
Total Pages | : 238 |
Release | : 2015-04-24 |
Genre | : Mathematics |
ISBN | : 9783319052304 |
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The book comprises contributions by some of the most respected scientists in the field of mathematical modeling and numerical simulation of the human cardiocirculatory system. The contributions cover a wide range of topics, from the preprocessing of clinical data to the development of mathematical equations, their numerical solution, and both in-vivo and in-vitro validation. They discuss the flow in the systemic arterial tree and the complex electro-fluid-mechanical coupling in the human heart. Many examples of patient-specific simulations are presented. This book is addressed to all scientists interested in the mathematical modeling and numerical simulation of the human cardiocirculatory system.
Your Circulatory System
Author | : Conrad J. Storad |
Publsiher | : Lerner Digital ™ |
Total Pages | : 40 |
Release | : 2017-08-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 9781512476071 |
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Audisee® eBooks with Audio combine professional narration and text highlighting for an engaging read aloud experience! The circulatory system is made up of the heart, the blood, and strong tubes called blood vessels. But what does the circulatory system do? And how do its parts work together to keep your body healthy? Explore the circulatory system in this engaging and informative book.