Portage Learning Anatomy and Physiology

Portage Learning Anatomy and PhysiologyAnatomy Study of the structure of the body and how it is designed Physiology Study of how the human body functions Physiology depends on the anatomy of the body Levels of organization of the body 1. Chemical level (atoms, molecules, macromolecules, organelles) 2. Cell 3. Tissues 4. Organs 5. Organ systems 6. Organism Tissue Group of cells that perform a specific function Types of tissues Epithelial, connective, muscle, nervous Epithelial Tissue Group of closely packed cells with very little matrix that cover the body surface and lines the cavities of the body. Can be found as one layer or many layers and are constantly under cell division to replace cells that shed away What are the epithelial cells specialized for? Secretion and absorption Muslce tissue Cells specialized for muscle contraction and allow us to move. Connective Tissue Group of cells specialized to provide support for the body and connects all of its parts. Include bones, ligaments, blood and tendons. Nervous Tissue A body tissue that carries electrical messages back and forth between the brain and every other part of the body. Organ Group of tissues that work together to perform a specific function Organ System Group of organs that work together to perform a specific function Organsim A living thing Integumentary System Skin, hair, nails Acts as a barrier between the environement and tissues/organs in the body Produces vitamin D Contains pain/pressure receptors to protect us Protects organs from extreme temperature chagne