Chapter 1a Notes Essay

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Chapter 1 – Part A The Human Body: An Orientation Why This Matters Learning and understanding anatomical terminology allows you to communicate accurately with your colleagues in the health sciences. 1.1 Form and Function of Anatomy & Physiology Anatomy Study of the structure of body parts and their relationship to one another Physiology Study of the function of body parts; how they work to carry out life-sustaining activities Topics of Anatomy Subdivisions of anatomy: Gross or macroscopic anatomy is the study of large, visible structures Regional anatomy looks at all structures in a particular area of the body System anatomy looks at just one system (cardiovascular, nervous, muscular, etc.) Surface anatomy looks at internal structures as they relate to overlying skin (visible muscle masses or veins seen on surface) Topics of Anatomy (cont.) Subdivisions (cont.) Microscopic anatomy deals with structures too small to be seen by naked eye Cytology: microscopic study of cells Histology: microscopic study of tissues Developmental anatomy studies anatomical and physiological development throughout life Embryology: study of developments before birth To study anatomy, one must know anatomical terminology and be able to observe, manipulate, palpate, and auscultate Topics of Physiology Subdivisions of physiology Based on organ systems (e.g., renal or cardiovascular physiology) Often focuses on cellular and molecular levels of the body Looks at how the body’s abilities are dependent on chemical reactions in individual cells To study physiology, one must understand basic physical principles (e.g., electrical currents, pressure, and movement) as well as basic chemical principles Complementarity of Structure and Function Anatomy and physiology are inseparable Function always reflects structure What a structure can do depends on its

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