A&P 101 UNIT 1: INTRODUCTION TO ANATOMY AND PHYSIOLOGY|2023 LATEST UPDATE|GUARANTEED SUCCESS

Definition of Anatomy The study of structure, including shape, size, texture, location, and purpose Gross Anatomy Study of structures large enough to see without magnification Microscopic Anatomy Study of structures that must be magnified to be seen Histology Study of tissue (low magnification) Cytology Study of cells (high magnification) Definition of Physiology The study of function: How does it work? Relationship between Anatomy and Physiology Anatomy is the structure of the body, Physiology is how the structure works Chemical Molecules working together with a common function Organelle "Mini organs" inside a cell working towards a common function Cell Basic unit of life Tissue Groups of cells working together for a common function` Organ Groups of tissues working together for a common function Organ System Groups of organs working together for a common function Organism Groups of organ systems working together for a common function Requirements for human life Water, food, oxygen, Heat, Pressure (to move fluid and chemicals) Homeostasis Keeping various things at a constant level in the body Anatomical Relationships The relationship of one place on the body compared with another Superior Above