WEEK 1

• LEVELS OF ORGANISM


  Chemical Level - Cellular Level - Tissue Level -Organ Level - Organ System- Organism
• Metabolism


  absorbs and breakdown chemicals
• Two types of metabolism

  Catabolism and Anabolism
• Catabolism


  breaks complex chemicals
• Anabolism


  builds complex chemicals from small and simpler components
• responsiveness


  the ability to detect and respond to changes
• movement


  motion of the whole body, individual organs and even tiny structures inside cells
• differentiation


  development of a cell from an unspecialized state
• reproduction


  forms a new cell for tissue growth, and production of new individual
• homeostasis


  the condition of equilibrium in the body's internal environment due to the constant interaction of the body's many regulatory processes
• feedback system


  status of a body condition is monitored, evaluated, and changed
• negative feedback


  reverses a change in a controlled situation
• positive feedback


  strengthen and reinforce a change in the one of the body controlled body condition
• basic life procedures


  metabolism, responsiveness, differentiation, reproduction, growth, movement
• cavity


  cranial cavity, thoracic cavity, pleural cavity, pericardial cavity, abdominopelvic cavity, abdominal cavity, pelvic cavity
• cranial cavity


  formed by cranial bones and contains brain
• vertebral canal


  formed by vertebral column and contains spinal cord and beginnings of spinal nerves
• thoracic cavity


  contains pleural and pericardial cavity
• pleural cavity


  space between the layers of the pleura that surrounds lung
• pericardial cavity


  space between the layers of the pericardium that surrounds the heart
• mediastinum


  central portion of thoracic cavity between the lungs; extends from sternum and vertebral column and from the the first rib to diaphragm; contains heart, thymus, trachea, and several large blood vessels
• abdominopelvic cavity


  subdivided into abdominal and pelvic cavities
• abdominal cavity


  contains stomach, spleen, liver, gallbladder, small intestine, and most of large intestine; the serious membrane of the abdominal cavity is peritoneum
• pelvic cavity


  contains urinary bladder, portions of large intestine, and internal organs of reproduction
• pleura


  layer that surrounds the lung
• pericardium


  surrounds the heart
• chemical level


  a very basic level and includes atoms, the smallest units of matter that participate in chemical reactions
• cellular level


  the basic structural and functional units of organism that are composed of chemicals
• tissue level


  group cells and the materials surrounding them that work together to perform particular functions
• organ level


  types of tissues are joined together.