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Learn about human anatomy and physiology online by downloading OpenStax's free Anatomy and Physiology 2e book and using our accompanying study guide.
Distinguish between anatomy and physiology, and identify several branches of each; Describe the structure of the body, from simplest to most complex, in terms of the six levels of organization; Identify the functional characteristics of human life; Identify the four requirements for human survival
Download OpenStax's free Anatomy and Physiology textbook to learn about human anatomy and physiology.
OpenStax
Human physiology is the scientific study of the chemistry and physics of the structures of the body and the ways in which they work together to support the functions of life. Much of the study of physiology centers on the body’s tendency toward homeostasis.
This free textbook is an OpenStax resource written to increase student access to high-quality, peer-reviewed learning materials.
Study biology online for free by downloading OpenStax's college Biology 2e book and using our accompanying online resources including a biology study guide.
Human physiology is the scientific study of the chemistry and physics of the structures of the body. Physiology explains how the structures of the body work together to maintain life. It is difficult to study structure (anatomy) without knowledge of function (physiology).
Chapters 1–4 provide students with a basic understanding of human anatomy and physiology, including its language, the levels of organization, and the basics of chemistry and cell biology. These chapters provide a foundation for the further study of the body.
In order to understand how that happens, it is necessary to understand the anatomy and physiology of the heart. Location of the Heart. The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum. Figure 19.2 shows the position of the heart within the thoracic cavity.