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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.
Provides information about the function of the heart and lungs in the body.
An introduction to the heart and lungs and their functions within the human body.
This book covers the latest information on the anatomic features, underlying physiologic mechanisms, and treatments for diseases of the heart. Key chapters address animal models for cardiac research, cardiac mapping systems, heart-valve disease and genomics-based tools and technology. Once again, a companion of supplementary videos offer unique insights into the working heart that enhance the understanding of key points within the text. Comprehensive and state-of-the art, the Handbook of Cardiac Anatomy, Physiology and Devices, Third Edition provides clinicians and biomedical engineers alike with the authoritative information and background they need to work on and implement tomorrow’s generation of life-saving cardiac devices.
What can you find inside your body? Well, there's your brain, heart, lungs and stomach, too. There are also other parts that you should be aware of. Thanks to the mainstream media and traditional learning tools, like this coloring book, your little ones can easily be educated on what the human anatomy is like from the inside. Color and learn today!
This enthralling look at the workings of the cardiovascular system introduces young readers to the human heart and its function. Along with the heart's atria and ventricles, the book explains the circulatory system and how the blood and its pathways operate. Readers get an in-depth look at red and white blood cells, platelets, plasma, blood pressure, blood types and donors, and how the lymphatic system works with the rest of the body's organs and tissues. Vocabulary boxes explain new words, Think About It sections pose questions for readers' consideration, and Compare and Contrast sidebars engage readers' minds.
An understanding of the structure and function of the human body is vital for anyone studying the medical and health sciences. In this book, Leslie Klenerman provides a clear and accessible overview of the main systems of the human anatomy, illustrated with a number of clear explanatory diagrams.